Hi Spencer,
> On Apr 24, 2019, at 8:29 AM, Spencer Hinsdale <[email protected]> wrote:
>
> If you go to Apple menu, System Preferences on the mini, for Network do you
> see more than one green dot? Each is separate network connection, where you
> can click Advanced and go to TCP/IP tab for details. Is not unheard of for
> someone to set up Ethernet and Wi-Fi.
No, just Ethernet is enabled. WiFi and the other connection types are not
connected (red dot). But that just helped me answer the question. If I disable
WiFi on my laptop, the server shows a 169.254.X.X link-local address. I wonder
why and if that could be a source of problems.
It shows a red dot, "not connected", but it is active according to ifconfig:
en10: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether a6:e9:75:40:77:fa
inet6 fe80::10be:87e1:3ea2:51c7%en10 prefixlen 64 secured scopeid 0x17
inet 169.254.132.126 netmask 0xffff0000 broadcast 169.254.255.255
nd6 options=201<PERFORMNUD,DAD>
media: autoselect (100baseTX <full-duplex>)
status: active
Even more interesting, you can highlight it and make it "Inactive" using the
popup menu at the bottom of the list. Red dot disappears and it says
"Inactive". But ifconfig still says it is active and the IP is still there when
I restart the server.
>
> Back in System Preferences, Energy Saver, you probably want Prevent Computer
> From Sleeping on all computers, but especially server. It is common for an
> upgrade of computer or system to reset this, to be green.
Yes, I have it setup that way. There is no monitor attached, so I also have no
screen saver and set the display to not sleep. Just switched off App Nap last
night, but I doubt that matters since it should never sleep.
>
> That said, be aware that 16.4 used New Networking only, which allows Clients
> to sleep. It is possible, if you have the Compatibility checkbox (in 4D
> Server, File menu, Database Settings) set to Use Legacy Network Layer that
> this works in 17.1 and would cause the errors below if Clients did Sleep.
> This checkbox would have no effect (and different text) in 16.4 and Clients
> could Sleep and wake no problem. Maybe all you need is to uncheck this.
I switched to 64 bit only with version 16, so only the new network layer is in
use.
I received a response off-line that stated similar problems and the issues were
solved by upgrading to 17R3 or later. I hope there is a better solution.
In addition to the dropped connections, it has also been reported 4D will
freeze up for a brief period and become unresponsive, then after about 15-20
seconds will begin responding again. No problems like this reported with 16.4
on the same network.
Thanks for your help and suggestions.
John DeSoi, Ph.D.
**********************************************************************
4D Internet Users Group (4D iNUG)
Archive: http://lists.4d.com/archives.html
Options: https://lists.4d.com/mailman/options/4d_tech
Unsub: mailto:[email protected]
**********************************************************************
