RE: Error connecting to 4D Server

[Allan Udy via 4D_Tech]

Keith White



We first saw many of these symptoms with v16R6 using the new network layer

... using v16R6 with the new network layer, we did get mass disconnections 
occurring and also seeing the Admin window changing the Accept/Reject by 
itself.  So after a mass disconnection, new connections couldn't be made.  At 
least that's what we initially thought.  It turned out that if you waited long 
enough (several minutes), connections would again be allowed...

In the end,4D  figured out a possible cause through some diagnostic logs they 
got from another customer.  The reference for the issue was ACI0098997.  It was 
fixed in v17 HF4 and obviously also fixed in v17.1.

Whilst the issue was fixed by4D,  the actual problem is caused by4D  Server 
receiving an incomplete set of packets from one or more4D  Remotes.  This could 
be due to any number of potential network or client machine issues


Many thanks for your detailed information.

I'm absolutely gobsmacked the 4D France (via 4D Australia) appears to 
have been unwilling and or unable to provide that information directly 
to us, given the questions I've been asking an the information I've been 
providing.


Back in mid-January I was told:

4D v17 R3 has just been released.  It contains those fixes :

ACI0098530 : "Accept new connections" button does not allow 4D Remote 
to connect again to 4D Server.
ACI0098997 : 4D Server become unable to accept new connection after 
receiving an incorrect client request.


The interesting thing to note is that ACI0098530 IS LISTED in the "v17 
R3- Fixed bugs" list (https://bugs.4d.fr/fixedbugslist?Version=17_R3) 
BUT, ACI0098997 is NOT listed in the Fixed Bugs list.


I have now been through the recent bug fix documentation:

https://bugs.4d.fr/fixedbugslist?Version=17.0_HF4 ->  Says ACI0098997 
Fixed in  16.4 HF1
https://bugs.4d.fr/fixedbugslist?Version=17.1             ->  Says 
ACI0098997 Fixed in 17.0 HF4  and 16.4 HF1


https://bugs.4d.fr/fixedbugslist?Version=17_R2 ->  NO MENTION OF 
ACI0098997
https://bugs.4d.fr/fixedbugslist?Version=17_R3 ->  NO MENTION OF 
ACI0098997
https://bugs.4d.fr/fixedbugslist?Version=17_R4 ->  NO MENTION OF 
ACI0098997


I'm beginning to suspect that it was NOT actually implemented in v17R3, 
and that in the R3 version (i.e. the version that we're currently 
running), it's still an existing bug/problem.


What concerns me is that it's not mentioned in the v17R4 Bug Fix list 
that is currently available, either.   :-(



Cheers,
Allan Udy

Golden Micro Solutions Ltd, Blenheim, New Zealand
http://www.golden.co.nz

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Re: Error connecting to 4D Server

[Jody Bevan via 4D_Tech]

Steve:

I agree with you 100%. It does not matter that we are right, if the client and 
their ‘network / hardware experts’ are telling them we are at fault.

I have shown in person the problems on the network or on the servers. Absolute 
obvious problems. I have documented them with written letters to the client 
after the meeting.

Who got blamed by the client - us. 

This is why industry accepted tools that show the proof of the problems is 
important to have in our toolbox. Some of the good network tools are expensive, 
and take substantial investment in training to get to use them effectively. 
Unless you have several staff, a great revenue stream you cannot afford the 
time, or the tools.

I encourage sharing here on how we can tackle this issue, for I have 
experienced these issues from time to time. It is a tough issue to tackle. 
Needing to point out the problems, while not chopping the nose of the client 
that you want to keep, while at the same time not hurting your own image. A 
tangled mess for sure.

Jody
ARGUS Productions Inc.

> On Apr 9, 2019, at 6:16 AM, Stephen J. Orth via 4D_Tech 
> <4d_tech@lists.4d.com> wrote:
> 
> Bernd,
> 
> Hello...
> 
> Yes, we are aware that this is potentially network related, but try 
> explaining that to a customer and not have them think your pointing fingers, 
> or passing the blame.
> 
> The biggest issue is we are getting these errors from a Client that is 
> running on the Server.  
> 
> 
> Steve

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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

Bernd,

Hello...

Yes, we are aware that this is potentially network related, but try explaining 
that to a customer and not have them think your pointing fingers, or passing 
the blame.

The biggest issue is we are getting these errors from a Client that is running 
on the Server.  


Steve

*
  Stephen J. Orth
  The Aquila Group, Inc.  Office:  (608) 834-9213
  P.O. Box 690   Mobile:  (608) 347-6447
  Sun Prairie, WI 53590

  E-Mail:  s.o...@the-aquila-group.com
*

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Bernd Fröhlich via 
4D_Tech
Sent: Tuesday, April 9, 2019 1:44 AM
To: 4d_tech@lists.4d.com
Cc: Bernd Fröhlich 
Subject: RE: Error connecting to 4D Server

Stephen J. Orth:

> What we get are the multiple errors that started this thread, where already 
> connected clients simply can no longer talk to the server.  Either you get 
> the -10002/3/4 error message, or the one that is happening mostly is the 
> "non-blocking" error.

I encounter those from time to time. Usually that means, there are network 
related problems. (Bad/broken cable, too much load on the network, flaky VPN 
connection, etc...) Nothing much on the 4D side that you can do about that.

Greetings from Germany,
Bernd Fröhlich
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RE: Error connecting to 4D Server

[Bernd Fröhlich via 4D_Tech]

Stephen J. Orth:

> What we get are the multiple errors that started this thread, where already 
> connected clients simply can no longer talk to the server.  Either you get 
> the -10002/3/4 error message, or the one that is happening mostly is the 
> "non-blocking" error.

I encounter those from time to time. Usually that means, there are network 
related problems. (Bad/broken cable, too much load on the network, flaky VPN 
connection, etc...)
Nothing much on the 4D side that you can do about that.

Greetings from Germany,
Bernd Fröhlich
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Re: Error connecting to 4D Server

[Allan Udy via 4D_Tech]

Stephen J. Orth wrote on 9/04/19 12:11 AM:
We have worked with our users regarding all kinds of Windows settings, 
including power, network, sleep, etc. however this is the first time 
I’ve heard the recommendation to put the server at “High Performance”. 
Interesting…


Steve, that info is easy to missIf you check out the following 
documentation pdf on the 4D website:


4D v17 R3 System requirements – January 2019

You'll see that they've recently added new information to the 
Requirements docs, specifically:



Windows Energy Saving Settings

The default settings for Windows Server or Windows desktop computers 
are optimized for saving energy. While this is usually the best 
setting for desktop usage, “High performance” servers could produce up 
to twice the speed than “Balanced”.




See also this tech tip from December:

https://kb.4d.com/assetid=78169


Changing to 'High Performance' on our problematic server certainly 
solved one issue and had a significant impact on the stability of the 
server application.



Cheers,
Allan Udy

Golden Micro Solutions Ltd, Blenheim, New Zealand
http://www.golden.co.nz

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RE: Error connecting to 4D Server

[Allan Udy via 4D_Tech]

From: Chip Scheide <4d_o...@pghrepository.org>

not a merged server expert - at all - BUT
4D server does (or at least did in earlier versions) reject new client 
connections during a backup.

it is possible that 4D server is doing a backup, changing the setting/disabling 
connections during backup - then failing (in some manner) to correctly reset to 
allow connections?


Pretty sure this is NOT the case -- this particular database backs up in 
the middle of the night, but most of the 'New Connection' disconnections 
occur during the day after users have already logged in earlier in the day.



Cheers,
Allan Udy

Golden Micro Solutions Ltd, Blenheim, New Zealand
http://www.golden.co.nz

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RE: Error connecting to 4D Server

[Keith White via 4D_Tech]

Hi there


We first saw many of these symptoms with v16R6 using the new network layer.  
Before that the only previous 4D version we'd used for a long time was v13.6 
which didn't have the new network layer.


Anyway, using v16R6 with the new network layer, we did get mass disconnections 
occurring and also seeing the Admin window changing the Accept/Reject by 
itself.  So after a mass disconnection, new connections couldn't be made.  At 
least that's what we initially thought.  It turned out that if you waited long 
enough (several minutes), connections would again be allowed.  The network 
layer somehow "resetting" itself, maybe.  Don't know.


We also noticed that at the point of these mass disconnections there would 
usually be an entry in the Windows Application event log.  The log entry had 
one single "japanese" looking character.


In the end, 4D figured out a possible cause through some diagnostic logs they 
got from another customer.  The reference for the issue was ACI0098997.  It was 
fixed in v17 HF4 and obviously also fixed in v17.1.  We had already begun our 
work to begin moving our client base from v16R6 onto v17, so we expedited this 
transition more quickly to take advantage of this and other fixes (and 
improvements) available in v17.


Whilst the issue was fixed by 4D, the actual problem is caused by 4D Server 
receiving an incomplete set of packets from one or more 4D Remotes.  This could 
be due to any number of potential network or client machine issues.  In 
summary, the 4D main thread was being blocked waiting for these incomplete 
packets to arrive and would eventually time out and resume its process 
(meanwhile all connected clients had already disconnected).  As I understand 
it, the change made by 4D was to build in a very short delay waiting on 
incomplete incoming packet sets.


I don't know whether ACI0098997 got implemented in v16.x as we never used the 
v16.x strand.


Since implementing v17.1, these new network layer disconnection issues have 
stopped, AFAIK.


Best regards


Keith White
Synergist Express Ltd, UK.
4697775
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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

Tim,

Thanks...appears these are two different issues, best I can tell.


Steve

*
  Stephen J. Orth
  The Aquila Group, Inc.  Office:  (608) 834-9213
  P.O. Box 690   Mobile:  (608) 347-6447
  Sun Prairie, WI 53590

  E-Mail:  s.o...@the-aquila-group.com
*

-Original Message-
From: Tim Nevels  
Sent: Monday, April 8, 2019 11:51 AM
To: s.o...@the-aquila-group.com
Cc: 4D iNug Technical <4d_tech@lists.4d.com>
Subject: Re: Error connecting to 4D Server

On Apr 8, 2019, at 11:44 AM, Stephen J. Orth  
wrote:

> What exactly are you seeing on the Clients?  Is this when someone is trying 
> to connect and they cannot?
> 
> If so, that is not what we are seeing.  What we get are the multiple errors 
> that started this thread, where already connected clients simply can no 
> longer talk to the server.  Either you get the -10002/3/4 error message, or 
> the one that is happening mostly is the "non-blocking" error.

Hi Steve,

I started 4D Client to connect to 4D Server, it showed the trying to connect 
progress window. After waiting a few seconds I realized it was not connecting 
to 4D Server as fast as it usually does. So I RDP to the 4D Server machine to 
check out the server and saw the “Accept New Connections” button. 

At the time nobody was connected to 4D Server. I was the first person this 
morning to try and connect. 

I have no idea when something happened to 4D Server. This particular server 
does not always have 4D Client connects. It does mostly web server work and 
only occasionally do people connect with 4D Client. 

Tim

*
Tim Nevels
Innovative Solutions
785-749-3444
timnev...@mac.com
*



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Re: Error connecting to 4D Server

[Tim Nevels via 4D_Tech]

On Apr 8, 2019, at 11:44 AM, Stephen J. Orth  
wrote:

> What exactly are you seeing on the Clients?  Is this when someone is trying 
> to connect and they cannot?
> 
> If so, that is not what we are seeing.  What we get are the multiple errors 
> that started this thread, where already connected clients simply can no 
> longer talk to the server.  Either you get the -10002/3/4 error message, or 
> the one that is happening mostly is the "non-blocking" error.

Hi Steve,

I started 4D Client to connect to 4D Server, it showed the trying to connect 
progress window. After waiting a few seconds I realized it was not connecting 
to 4D Server as fast as it usually does. So I RDP to the 4D Server machine to 
check out the server and saw the “Accept New Connections” button. 

At the time nobody was connected to 4D Server. I was the first person this 
morning to try and connect. 

I have no idea when something happened to 4D Server. This particular server 
does not always have 4D Client connects. It does mostly web server work and 
only occasionally do people connect with 4D Client. 

Tim

*
Tim Nevels
Innovative Solutions
785-749-3444
timnev...@mac.com
*

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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

Tim,

What exactly are you seeing on the Clients?  Is this when someone is trying to 
connect and they cannot?

If so, that is not what we are seeing.  What we get are the multiple errors 
that started this thread, where already connected clients simply can no longer 
talk to the server.  Either you get the -10002/3/4 error message, or the one 
that is happening mostly is the "non-blocking" error.


Steve

*
  Stephen J. Orth
  The Aquila Group, Inc.  Office:  (608) 834-9213
  P.O. Box 690   Mobile:  (608) 347-6447
  Sun Prairie, WI 53590

  E-Mail:  s.o...@the-aquila-group.com
*

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Tim Nevels via 4D_Tech
Sent: Monday, April 8, 2019 11:00 AM
To: 4d_tech@lists.4d.com
Cc: Tim Nevels 
Subject: RE: Error connecting to 4D Server

On Apr 8, 2019, at 10:24 AM, Allan Udy wrote:
I ran into this problem again this morning. And this time it occurred on 
another server at a different client site. And Allan is right, when you click 
the “Accept New Connections” button 4D Server hangs and you get the Windows 
dialog box that 4D Server has stopped responding and you have to kill 4D 
Server. 

I think Allan is right. Something inside 4D Server is flipping the switch to 
stop accepting new connections and it is updating the 4D Server Administration 
window UI to show that. But it’s not doing the stop accepting connection part 
properly. So when you click the button to make it start accepting connections 
again it expects things to be in a certain state and it is not, so 4D Server 
hangs and crashes.

Tim

*
Tim Nevels
Innovative Solutions
785-749-3444
timnev...@mac.com
*


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RE: Error connecting to 4D Server

[Tim Nevels via 4D_Tech]

On Apr 8, 2019, at 10:24 AM, Chip Scheide wrote:

> not a merged server expert - at all - BUT
> 4D server does (or at least did in earlier versions) reject new client 
> connections during a backup.
> 
> it is possible that 4D server is doing a backup, changing the 
> setting/disabling connections during backup - then failing (in some manner) 
> to correctly reset to allow connections?
> 
> again - maybe - if this is the issue
> either someone is trying to connect, an external process (an other server?) 
> is trying to connect, or a deamon is trying to run during the backup and this 
> action is "confusing" 4D server and it is failing to reset to allow 
> connections.

If a backup is running you can still connect to 4D Server. You just get a 
message that a maintenance operation is occurring. It is not a total rejection 
of connections. It is accepting a connection, then sending back a message of 
the backup running. 

This is different from what we are seeing. You never get connected to 4D 
Server. 4D Client tries for a while and then gives you a runtime error.

So I don’t think this is connected to or related to the backup process. 

Tim

*
Tim Nevels
Innovative Solutions
785-749-3444
timnev...@mac.com
*

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RE: Error connecting to 4D Server

[Chip Scheide via 4D_Tech]

not a merged server expert - at all - BUT
4D server does (or at least did in earlier versions) reject new client 
connections during a backup.

it is possible that 4D server is doing a backup, changing the setting/disabling 
connections during backup - then failing (in some manner) to correctly reset to 
allow connections?

again - maybe - if this is the issue
either someone is trying to connect, an external process (an other server?) is 
trying to connect, or a deamon is trying to run during the backup and this 
action is "confusing" 4D server and it is failing to reset to allow connections.

Chip

> 
> We've been working with 4D Australia, and forwarding info to 4D 
> France to try and find out under what circumstances the internal 
> server engine will change the text on that button from 'Reject New 
> Connections' to 'Accept New Connections', but so far 4D France 
> appears to be unwilling to share that info.  I figure it may not 
> necessarily be a bug in 4D, but if we knew what conditions triggered 
> the behavior we might be able to solve the problem if it's 
> environmental. That is, somehow the engine is recognising that 
> there's a condition where there are no new connections being 
> accepted, and so it changes the text on the button to 'Accept New 
> Connections, without a user actually pressing that button.
> 
> Previously I thought we were going mad, and that there should be no 
> need for the server engine to be able to autonomously change the text 
> on that button, other than when a user actually clicks the button, 
> however if you look at the documentation for v17R4 you'll see that 
> there is a new REJECT NEW CONNECTIONS command coming.  maybe 
> someone has been working on this internal code for a while and has 
> changed something?
> 
> We now ensure, for the time being, that the DBA leaves the 
> Application Server page of the Administration Window open at all 
> times, so that we can see if the button text has changed when they 
> report massed client disconnections.

Hell is other people 
 Jean-Paul Sartre
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RE: Error connecting to 4D Server

[Allan Udy via 4D_Tech]

From: "Stephen J. Orth"

I don't have an solution for you but I would love to know how to stop these 
issues as they are regular problems facing our OEM Clients.

We have talked to our Clients about port time outs, external scanning software, 
etc.  We have made adjustments on our side where we can...but we just cannot 
seem to stop these issues.  What is worse, we really don't have any more 
suggestions for our Clients as this is only linked to 4D.


I haven't been following this thread closely Steve, but here's something 
else to keep an eye on and consider


We too are having issues with one of our customers (with Windows merged 
app server), who has been having relatively frequent client 
disconnections. We believe there were TWO different issues at work...


We managed to solve quite a few of those by ensuring the Power Settings 
on the Windows server were set to 'High Performance', not 'Balanced' -- 
you should be able to find info about those settings by searching the 
net etc.


The second issue has been much more problematic -- it appears to us, 
that in v17 (at least), 4D Server is capable of autonomously setting the 
'Reject New Connections' option, without user input.  That is, we've 
seen a significant number of client disconnections, where upon 
investigation we've seen that the '... New Connections' button on the 
Application Server page of the Administration Window has been reading 
'Accept New Connections', indicating that the server is NO LONGER 
accepting connections.  Every time we then use the server UI to click 
this button, the Server application crashes in a most unladylike manner.


Tim Nevels (if I recall correctly), reported to us a couple of months 
ago that he'd seen the same issue, once.


We've been working with 4D Australia, and forwarding info to 4D France 
to try and find out under what circumstances the internal server engine 
will change the text on that button from 'Reject New Connections' to 
'Accept New Connections', but so far 4D France appears to be unwilling 
to share that info.  I figure it may not necessarily be a bug in 4D, but 
if we knew what conditions triggered the behavior we might be able to 
solve the problem if it's environmental. That is, somehow the engine is 
recognising that there's a condition where there are no new connections 
being accepted, and so it changes the text on the button to 'Accept New 
Connections, without a user actually pressing that button.


Previously I thought we were going mad, and that there should be no need 
for the server engine to be able to autonomously change the text on that 
button, other than when a user actually clicks the button, however if 
you look at the documentation for v17R4 you'll see that there is a new 
REJECT NEW CONNECTIONS command coming.  maybe someone has been 
working on this internal code for a while and has changed something?


We now ensure, for the time being, that the DBA leaves the Application 
Server page of the Administration Window open at all times, so that we 
can see if the button text has changed when they report massed client 
disconnections.


This is an ongoing nightmare for us.  :-(

Cheers,
Allan Udy

Golden Micro Solutions Ltd, Blenheim, New Zealand
http://www.golden.co.nz

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RE: Error connecting to 4D Server - SOLVED

[Paul Dennis via 4D_Tech]

Its easy to turn off. Control Panel - Windows Update - Change Settings -
Select "Download but choose to install"  Then when you check you can see
which ones to install. If Win server is only running 4D then no need to auto
install updates. Fire wall should block any issues.
Paul



--
Sent from: http://4d.1045681.n5.nabble.com/4D-Tech-f1376241.html
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RE: Error connecting to 4D Server - SOLVED

[Chip Scheide via 4D_Tech]

it is possible to setup windows (including server) to automatically 
update the OS.
When this happens the update(s) are installed (default setting is at 
3am) and if needed the computer (servers included) restart.

there are updates which can/are installed that do not require a 
restart, so it is possible that an update ran over night (or whatever 
time it is set for) and this changes something.

My understanding is (I am not using so I am not sure) that Windows 10 
(and probably the most recent servers too) have this setting ON and it 
is not (easy) to disable this functionality.

Chip

On Wed, 3 Apr 2019 16:10:09 -0500, Stephen J. Orth wrote:
> Chip,
> 
> Yes, we are Windows only.  What do you mean by an auto-update?  A Windows
> update?
> 
> 
> Steve
> 
> 
> -Original Message-
> From: Chip Scheide <4d_o...@pghrepository.org> 
> Sent: Wednesday, April 3, 2019 3:54 PM
> To: s.o...@the-aquila-group.com; 4D iNug Technical <4d_tech@lists.4d.com>
> Cc: 'David Rose' 
> Subject: RE: Error connecting to 4D Server - SOLVED
> 
> 
> running under windows?
> could be caused by an auto update...
> 
> Chip
> 
> 
> 
---
Gas is for washing parts
Alcohol is for drinkin'
Nitromethane is for racing 
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Re: Error connecting to 4D Server - SOLVED

[Ken Geiger Gmail via 4D_Tech]

The dark-side strikes again!

Sent from my iPhone

> On Apr 3, 2019, at 2:25 PM, David Rose via 4D_Tech <4d_tech@lists.4d.com> 
> wrote:
> 
> It was something simple - a recent Windows update on this computer (grrr) 
> changed the Ethernet IP address assignment method from static to dynamic, 
> then, when the computer restarted, a new local IP address was assigned. So in 
> the 4D connection window the database had the old IP address. 
> 
> Message: 1
> Date: Wed, 3 Apr 2019 11:41:12 -0500
> From: "Stephen J. Orth" 
> To: "'4D iNug Technical'" <4d_tech@lists.4d.com>
> Cc: "'David Rose'" 
> Subject: RE: Error connecting to 4D Server
> Message-ID: <00b801d4ea3c$0cdec390$269c4ab0$@the-aquila-group.com>
> Content-Type: text/plain;charset="utf-8"
> 
> David,
> 
> I don't have an solution for you but I would love to know how to stop these 
> issues as they are regular problems facing our OEM Clients.
> 
> We have talked to our Clients about port time outs, external scanning 
> software, etc.  We have made adjustments on our side where we can...but we 
> just cannot seem to stop these issues.  What is worse, we really don't have 
> any more suggestions for our Clients as this is only linked to 4D. 
> 
> 
> Steve
> 
> -Original Message-
> From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 
> 4D_Tech
> Sent: Wednesday, April 3, 2019 11:34 AM
> To: 4d_tech@lists.4d.com
> Cc: David Rose 
> Subject: Error connecting to 4D Server
> 
> I have been developing a 4D v15 client/server application on a Windows 10 
> computer for years without a problem. I have always been able to connect from 
> 4D to the server, with both server and client running on the same computer. 
> Until today. Now, when I try to connect from 4D to the server, I am getting 
> this error message:
> 
> **
> Error code: -10002 (4DRT)
> The connection for this process has been disrupted or the connection couldn't 
> be established.
> component: '4DRT'
> task -1, name: 'Application process'
> 
> Error code: 10035 (WI32)
> A non-blocking socket operation could not be completed immediately.
> 
> component: 'WI32'
> task -1, name: 'Application process'
> **
> 
> I deleted all of the files in the 4D folder, checked my virus protection 
> software for possible blocks, restarted the router and the computer. Ran the 
> network troubleshooter. Still have the problem. I created a brand new 
> database, launched it in 4D Server, get the same error trying to connect to 
> it. When I do these tests I only have one 4D database running on this 
> computer.
> 
> David
> 
> 
> 
> **
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RE: Error connecting to 4D Server - SOLVED

[Stephen J. Orth via 4D_Tech]

Chip,

Yes, we are Windows only.  What do you mean by an auto-update?  A Windows
update?


Steve


-Original Message-
From: Chip Scheide <4d_o...@pghrepository.org> 
Sent: Wednesday, April 3, 2019 3:54 PM
To: s.o...@the-aquila-group.com; 4D iNug Technical <4d_tech@lists.4d.com>
Cc: 'David Rose' 
Subject: RE: Error connecting to 4D Server - SOLVED


running under windows?
could be caused by an auto update...

Chip


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RE: Error connecting to 4D Server - SOLVED

[Chip Scheide via 4D_Tech]

running under windows?
could be caused by an auto update...

Chip
On Wed, 3 Apr 2019 15:40:56 -0500, Stephen J. Orth via 4D_Tech wrote:
> David,
> 
> Cool, glad you figured it out.  Wish it was that simple for us...
> 
> We have a 24/7 batch processing station at every customer site, and 
> this will suddenly error out with either the -10002 or socket error.
> 
> 
> Steve
> 
> -Original Message-
> From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose 
> via 4D_Tech
> Sent: Wednesday, April 3, 2019 3:26 PM
> To: 4d_tech@lists.4d.com
> Cc: David Rose 
> Subject: RE: Error connecting to 4D Server - SOLVED
> 
> It was something simple - a recent Windows update on this computer 
> (grrr) changed the Ethernet IP address assignment method from static 
> to dynamic, then, when the computer restarted, a new local IP address 
> was assigned. So in the 4D connection window the database had the old 
> IP address. 
> 
> Message: 1
> Date: Wed, 3 Apr 2019 11:41:12 -0500
> From: "Stephen J. Orth" 
> To: "'4D iNug Technical'" <4d_tech@lists.4d.com>
> Cc: "'David Rose'" 
> Subject: RE: Error connecting to 4D Server
> Message-ID: <00b801d4ea3c$0cdec390$269c4ab0$@the-aquila-group.com>
> Content-Type: text/plain; charset="utf-8"
> 
> David,
> 
> I don't have an solution for you but I would love to know how to stop 
> these issues as they are regular problems facing our OEM Clients.
> 
> We have talked to our Clients about port time outs, external scanning 
> software, etc.  We have made adjustments on our side where we 
> can...but we just cannot seem to stop these issues.  What is worse, 
> we really don't have any more suggestions for our Clients as this is 
> only linked to 4D. 
> 
> 
> Steve
> 
> -Original Message-
> From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose 
> via 4D_Tech
> Sent: Wednesday, April 3, 2019 11:34 AM
> To: 4d_tech@lists.4d.com
> Cc: David Rose 
> Subject: Error connecting to 4D Server
> 
> I have been developing a 4D v15 client/server application on a 
> Windows 10 computer for years without a problem. I have always been 
> able to connect from 4D to the server, with both server and client 
> running on the same computer. Until today. Now, when I try to connect 
> from 4D to the server, I am getting this error message:
> 
> **
> Error code: -10002 (4DRT)
> The connection for this process has been disrupted or the connection 
> couldn't be established.
> component: '4DRT'
> task -1, name: 'Application process'
> 
> Error code: 10035 (WI32)
> A non-blocking socket operation could not be completed immediately.
> 
> component: 'WI32'
> task -1, name: 'Application process'
> **
> 
> I deleted all of the files in the 4D folder, checked my virus 
> protection software for possible blocks, restarted the router and the 
> computer. Ran the network troubleshooter. Still have the problem. I 
> created a brand new database, launched it in 4D Server, get the same 
> error trying to connect to it. When I do these tests I only have one 
> 4D database running on this computer.
> 
> David
> 
> 
> 
> **
> 4D Internet Users Group (4D iNUG)
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RE: Error connecting to 4D Server - SOLVED

[Stephen J. Orth via 4D_Tech]

David,

Cool, glad you figured it out.  Wish it was that simple for us...

We have a 24/7 batch processing station at every customer site, and this will 
suddenly error out with either the -10002 or socket error.


Steve

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 4D_Tech
Sent: Wednesday, April 3, 2019 3:26 PM
To: 4d_tech@lists.4d.com
Cc: David Rose 
Subject: RE: Error connecting to 4D Server - SOLVED

It was something simple - a recent Windows update on this computer (grrr) 
changed the Ethernet IP address assignment method from static to dynamic, then, 
when the computer restarted, a new local IP address was assigned. So in the 4D 
connection window the database had the old IP address. 

Message: 1
Date: Wed, 3 Apr 2019 11:41:12 -0500
From: "Stephen J. Orth" 
To: "'4D iNug Technical'" <4d_tech@lists.4d.com>
Cc: "'David Rose'" 
Subject: RE: Error connecting to 4D Server
Message-ID: <00b801d4ea3c$0cdec390$269c4ab0$@the-aquila-group.com>
Content-Type: text/plain;   charset="utf-8"

David,

I don't have an solution for you but I would love to know how to stop these 
issues as they are regular problems facing our OEM Clients.

We have talked to our Clients about port time outs, external scanning software, 
etc.  We have made adjustments on our side where we can...but we just cannot 
seem to stop these issues.  What is worse, we really don't have any more 
suggestions for our Clients as this is only linked to 4D. 


Steve

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 4D_Tech
Sent: Wednesday, April 3, 2019 11:34 AM
To: 4d_tech@lists.4d.com
Cc: David Rose 
Subject: Error connecting to 4D Server

I have been developing a 4D v15 client/server application on a Windows 10 
computer for years without a problem. I have always been able to connect from 
4D to the server, with both server and client running on the same computer. 
Until today. Now, when I try to connect from 4D to the server, I am getting 
this error message:

**
Error code: -10002 (4DRT)
The connection for this process has been disrupted or the connection couldn't 
be established.
component: '4DRT'
task -1, name: 'Application process'

Error code: 10035 (WI32)
A non-blocking socket operation could not be completed immediately.

component: 'WI32'
task -1, name: 'Application process'
**

I deleted all of the files in the 4D folder, checked my virus protection 
software for possible blocks, restarted the router and the computer. Ran the 
network troubleshooter. Still have the problem. I created a brand new database, 
launched it in 4D Server, get the same error trying to connect to it. When I do 
these tests I only have one 4D database running on this computer.

David



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RE: Error connecting to 4D Server - SOLVED

[David Rose via 4D_Tech]

It was something simple - a recent Windows update on this computer (grrr) 
changed the Ethernet IP address assignment method from static to dynamic, then, 
when the computer restarted, a new local IP address was assigned. So in the 4D 
connection window the database had the old IP address. 

Message: 1
Date: Wed, 3 Apr 2019 11:41:12 -0500
From: "Stephen J. Orth" 
To: "'4D iNug Technical'" <4d_tech@lists.4d.com>
Cc: "'David Rose'" 
Subject: RE: Error connecting to 4D Server
Message-ID: <00b801d4ea3c$0cdec390$269c4ab0$@the-aquila-group.com>
Content-Type: text/plain;   charset="utf-8"

David,

I don't have an solution for you but I would love to know how to stop these 
issues as they are regular problems facing our OEM Clients.

We have talked to our Clients about port time outs, external scanning software, 
etc.  We have made adjustments on our side where we can...but we just cannot 
seem to stop these issues.  What is worse, we really don't have any more 
suggestions for our Clients as this is only linked to 4D. 


Steve

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 4D_Tech
Sent: Wednesday, April 3, 2019 11:34 AM
To: 4d_tech@lists.4d.com
Cc: David Rose 
Subject: Error connecting to 4D Server

I have been developing a 4D v15 client/server application on a Windows 10 
computer for years without a problem. I have always been able to connect from 
4D to the server, with both server and client running on the same computer. 
Until today. Now, when I try to connect from 4D to the server, I am getting 
this error message:

**
Error code: -10002 (4DRT)
The connection for this process has been disrupted or the connection couldn't 
be established.
component: '4DRT'
task -1, name: 'Application process'

Error code: 10035 (WI32)
A non-blocking socket operation could not be completed immediately.

component: 'WI32'
task -1, name: 'Application process'
**

I deleted all of the files in the 4D folder, checked my virus protection 
software for possible blocks, restarted the router and the computer. Ran the 
network troubleshooter. Still have the problem. I created a brand new database, 
launched it in 4D Server, get the same error trying to connect to it. When I do 
these tests I only have one 4D database running on this computer.

David



**
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Re: Error connecting to 4D Server

[Chuck Miller via 4D_Tech]

when connecting on local machine, I would use localhost and not IP address

Regards

Chuck

 Chuck Miller Voice: (617) 739-0306
 Informed Solutions, Inc. Fax: (617) 232-1064   
 mailto:cjmillerinformed-solutions.com 
 Brookline, MA 02446 USA Registered 4D Developer
   Providers of 4D and Sybase connectivity
  http://www.informed-solutions.com  

This message and any attached documents contain information which may be 
confidential, subject to privilege or exempt from disclosure under applicable 
law.  These materials are intended only for the use of the intended recipient. 
If you are not the intended recipient of this transmission, you are hereby 
notified that any distribution, disclosure, printing, copying, storage, 
modification or the taking of any action in reliance upon this transmission is 
strictly prohibited.  Delivery of this message to any person other than the 
intended recipient shall not compromise or waive such confidentiality, 
privilege or exemption from disclosure as to this communication. 

> On Apr 3, 2019, at 2:20 PM, Stephen J. Orth via 4D_Tech 
> <4d_tech@lists.4d.com> wrote:
> 
> Kevin,
> 
> I'm not sure about others, but these types of issue have been around (for us) 
> at least 3 years now...so it may be related to "recent" changes, but it's 
> also been happening for a lot longer time.
> 
> Best,
> 
> 
> Steve
> 
> -Original Message-
> From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Guru via 4D_Tech
> Sent: Wednesday, April 3, 2019 12:41 PM
> To: 4d_tech@lists.4d.com
> Cc: Guru 
> Subject: Re: Error connecting to 4D Server
> 
> Check the server firewall. We have had issues following recent Microsoft 
> updates to server software. Sometimes the firewall seems to increase 
> security, and occasionally web port issues too.
> 
> 
> 
> 
> --
> Sent from: http://4d.1045681.n5.nabble.com/4D-Tech-f1376241.html
> **
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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

Kevin,

I'm not sure about others, but these types of issue have been around (for us) 
at least 3 years now...so it may be related to "recent" changes, but it's also 
been happening for a lot longer time.

Best,


Steve

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Guru via 4D_Tech
Sent: Wednesday, April 3, 2019 12:41 PM
To: 4d_tech@lists.4d.com
Cc: Guru 
Subject: Re: Error connecting to 4D Server

Check the server firewall. We have had issues following recent Microsoft 
updates to server software. Sometimes the firewall seems to increase security, 
and occasionally web port issues too.




--
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Re: Error connecting to 4D Server

[Guru via 4D_Tech]

Check the server firewall. We have had issues following recent Microsoft
updates to server software. Sometimes the firewall seems to increase
security, and occasionally web port issues too.




--
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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

David,

We are using V16 and this is when it started happening.  Never had this issue 
in V13...


Steve


-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 4D_Tech
Sent: Wednesday, April 3, 2019 12:10 PM
To: 4d_tech@lists.4d.com
Cc: David Rose 
Subject: RE: Error connecting to 4D Server

One thing has changed: I installed v17 on this computer several days ago, and 
did run a database in 4D Server several times. The error that I am getting 
occurs in both v15 and v17.

-Original Message-
From: David Rose [mailto:drose...@gmail.com]
Sent: Wednesday, April 03, 2019 11:57 AM
To: '4d_tech@lists.4d.com' <4d_tech@lists.4d.com>
Subject: RE: Error connecting to 4D Server

Ports haven't changed. When I got this error, one of the things I tried was 
changing the ports, and including the new port number in the connection dialog, 
as you mentioned. No luck.


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RE: Error connecting to 4D Server

[David Rose via 4D_Tech]

One thing has changed: I installed v17 on this computer several days ago,
and did run a database in 4D Server several times. The error that I am
getting occurs in both v15 and v17.

-Original Message-
From: David Rose [mailto:drose...@gmail.com] 
Sent: Wednesday, April 03, 2019 11:57 AM
To: '4d_tech@lists.4d.com' <4d_tech@lists.4d.com>
Subject: RE: Error connecting to 4D Server

Ports haven't changed. When I got this error, one of the things I tried was
changing the ports, and including the new port number in the connection
dialog, as you mentioned. No luck.

-Original Message-
From: Chip Scheide [mailto:4d_o...@pghrepository.org] 
Sent: Wednesday, April 03, 2019 11:49 AM
To: 4D iNug Technical <4d_tech@lists.4d.com>
Cc: David Rose 
Subject: Re: Error connecting to 4D Server


have you changed the default ports that 4D uses?
if so, you need to specify the new/changed port number in the connection
dialog and you need to change both ports (as I understand) 4D, &  Sql
(usually -1 from 4D port) 

ex:
123.123.123.123:123456

On Wed, 3 Apr 2019 11:34:10 -0500, David Rose via 4D_Tech wrote:
> I have been developing a 4D v15 client/server application on a Windows 
> 10 computer for years without a problem. I have always been able to 
> connect from 4D to the server, with both server and client running on 
> the same computer. Until today. Now, when I try to connect from 4D to 
> the server, I am getting this error message:
> 
> **
> Error code: -10002 (4DRT)
> The connection for this process has been disrupted or the connection 
> couldn't be established.
> component: '4DRT'
> task -1, name: 'Application process'
> 
> Error code: 10035 (WI32)
> A non-blocking socket operation could not be completed immediately.
> 
> component: 'WI32'
> task -1, name: 'Application process'
> **
> 
> I deleted all of the files in the 4D folder, checked my virus 
> protection software for possible blocks, restarted the router and the 
> computer. Ran the network troubleshooter. Still have the problem. I 
> created a brand new database, launched it in 4D Server, get the same 
> error trying to connect to it. When I do these tests I only have one 
> 4D database running on this computer.
> 
> David
> 
 

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RE: Error connecting to 4D Server

[David Rose via 4D_Tech]

Ports haven't changed. When I got this error, one of the things I tried was
changing the ports, and including the new port number in the connection
dialog, as you mentioned. No luck.

-Original Message-
From: Chip Scheide [mailto:4d_o...@pghrepository.org] 
Sent: Wednesday, April 03, 2019 11:49 AM
To: 4D iNug Technical <4d_tech@lists.4d.com>
Cc: David Rose 
Subject: Re: Error connecting to 4D Server


have you changed the default ports that 4D uses?
if so, you need to specify the new/changed port number in the connection
dialog and you need to change both ports (as I understand) 4D, &  Sql
(usually -1 from 4D port) 

ex:
123.123.123.123:123456

On Wed, 3 Apr 2019 11:34:10 -0500, David Rose via 4D_Tech wrote:
> I have been developing a 4D v15 client/server application on a Windows 
> 10 computer for years without a problem. I have always been able to 
> connect from 4D to the server, with both server and client running on 
> the same computer. Until today. Now, when I try to connect from 4D to 
> the server, I am getting this error message:
> 
> **
> Error code: -10002 (4DRT)
> The connection for this process has been disrupted or the connection 
> couldn't be established.
> component: '4DRT'
> task -1, name: 'Application process'
> 
> Error code: 10035 (WI32)
> A non-blocking socket operation could not be completed immediately.
> 
> component: 'WI32'
> task -1, name: 'Application process'
> **
> 
> I deleted all of the files in the 4D folder, checked my virus 
> protection software for possible blocks, restarted the router and the 
> computer. Ran the network troubleshooter. Still have the problem. I 
> created a brand new database, launched it in 4D Server, get the same 
> error trying to connect to it. When I do these tests I only have one 
> 4D database running on this computer.
> 
> David
> 
 

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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

Chip,

We don't change the default ports and these messages come up frequently and 
many of our OEM customers.  We have situations where the client & server are on 
the same hardware and both these issues happen.


Steve


From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Chip Scheide via 
4D_Tech
Sent: Wednesday, April 3, 2019 11:49 AM
To: 4D iNug Technical <4d_tech@lists.4d.com>
Cc: Chip Scheide <4d_o...@pghrepository.org>; David Rose 
Subject: Re: Error connecting to 4D Server


have you changed the default ports that 4D uses?
if so, you need to specify the new/changed port number in the connection dialog 
and you need to change both ports (as I understand) 4D, &  Sql (usually -1 from 
4D port) 

ex:
123.123.123.123:123456

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Re: Error connecting to 4D Server

[Chip Scheide via 4D_Tech]

have you changed the default ports that 4D uses?
if so, you need to specify the new/changed port number in the 
connection dialog
and you need to change both ports (as I understand) 
4D, &  Sql (usually -1 from 4D port) 

ex:
123.123.123.123:123456

On Wed, 3 Apr 2019 11:34:10 -0500, David Rose via 4D_Tech wrote:
> I have been developing a 4D v15 client/server application on a 
> Windows 10 computer for years without a problem. I have always been 
> able to connect from 4D to the server, with both server and client 
> running on the same computer. Until today. Now, when I try to connect 
> from 4D to the server, I am getting this error message:
> 
> **
> Error code: -10002 (4DRT)
> The connection for this process has been disrupted or the connection 
> couldn't be established.
> component: '4DRT'
> task -1, name: 'Application process'
> 
> Error code: 10035 (WI32)
> A non-blocking socket operation could not be completed immediately.
> 
> component: 'WI32'
> task -1, name: 'Application process'
> **
> 
> I deleted all of the files in the 4D folder, checked my virus 
> protection software for possible blocks, restarted the router and the 
> computer. Ran the network troubleshooter. Still have the problem. I 
> created a brand new database, launched it in 4D Server, get the same 
> error trying to connect to it. When I do these tests I only have one 
> 4D database running on this computer.
> 
> David
> 
> **
> 4D Internet Users Group (4D iNUG)
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RE: Error connecting to 4D Server

[Stephen J. Orth via 4D_Tech]

David,

I don't have an solution for you but I would love to know how to stop these 
issues as they are regular problems facing our OEM Clients.

We have talked to our Clients about port time outs, external scanning software, 
etc.  We have made adjustments on our side where we can...but we just cannot 
seem to stop these issues.  What is worse, we really don't have any more 
suggestions for our Clients as this is only linked to 4D. 


Steve

-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of David Rose via 4D_Tech
Sent: Wednesday, April 3, 2019 11:34 AM
To: 4d_tech@lists.4d.com
Cc: David Rose 
Subject: Error connecting to 4D Server

I have been developing a 4D v15 client/server application on a Windows 10 
computer for years without a problem. I have always been able to connect from 
4D to the server, with both server and client running on the same computer. 
Until today. Now, when I try to connect from 4D to the server, I am getting 
this error message:

**
Error code: -10002 (4DRT)
The connection for this process has been disrupted or the connection couldn't 
be established.
component: '4DRT'
task -1, name: 'Application process'

Error code: 10035 (WI32)
A non-blocking socket operation could not be completed immediately.

component: 'WI32'
task -1, name: 'Application process'
**

I deleted all of the files in the 4D folder, checked my virus protection 
software for possible blocks, restarted the router and the computer. Ran the 
network troubleshooter. Still have the problem. I created a brand new database, 
launched it in 4D Server, get the same error trying to connect to it. When I do 
these tests I only have one 4D database running on this computer.

David

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