I recently worked on a project where we were polling multiple SQL databases 
across multiple servers and there was one server that would occasionally get 
skipped due to timeout delays. We adjusted our wait times in VFP, but still on 
occasion this would happen. IT did further stress testing on the server and 
found the network card was going bad. Replaced card and problem vanished. If 
other locations are working doing the same process, then I would focus on local 
network environmental elements such as the network switches, cables or cards. 

Paul H. Tarver



-----Original Message-----
From: ProfoxTech [mailto:[email protected]] On Behalf Of Frank 
Cazabon
Sent: Wednesday, May 02, 2018 1:08 PM
To: [email protected]
Subject: [NF] Network Request timed out

I am having some problems when running code that synchronises data 
between 2 SQL Servers using SM Sync Framework. This code runs fine at 
about 50 other sites.

I am getting time out errors reported:

TCP Provider, error: 0 - The semaphore timeout period has expired

Google has suggested this site 
https://sqlserverscribbles.com/2013/02/15/tcp-provider-the-semaphore-timeout-period-has-expired/
 
as possible solutions but I wanted to make sure there is actually a 
problem before I try to fix it as I am not a network guy. My client 
doesn't have anyone who manages their network for them either.

I found a suggestion to run this command:

ping -t hostname > out.txt

so I did that  and left it running for about 4 and a half hours. In that 
period I got 38 Request timed out messages (out of 18,685 total 
messages, so 18,643 were successful, the majority in 3 or 4 ms but 
pretty regularly going up to 22 or 23ms).

Is this normal, or do you think they have a problem?

-- 

Frank.

Frank Cazabon


[excessive quoting removed by server]

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