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RDP sessions dropping off regularly

Posted on 2010-09-03
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Last Modified: 2013-11-21
We have 2 offices.
Linked by a Cisco ASA 5505 and a 5510 site to site vpn
Users in office a RDP to a TS in site B for accounts.
However the last few weeks the RDP session gets dropped 10-20 times a day
Even if it's in use. It takes 5/6 seconds and comes back up again more often than not.

i've spoken to BT and there are no line issues
I've spoken to firewall people and they say no issue
VPN isn't dropping. So it appears to be only the RDP sessions.

It's a W2k3 server and XP clients.

Previous support incident raised resulted in the follwoing being added to all machines in site A

reg.exe add HKLM\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters /v KeepConn /t REG_DWORD /d 65535 /f
reg.exe add HKLM\SYSTEM\CurrentControlSet\Services\netbt\Parameters /v SessionKeepAlive /t REG_DWORD /d 4294967295 /f
reg.exe add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\BITS /v UseLmCompat /t REG_DWORD /d 0 /f


But that was a looooong time ago.
It's only of late this has been playing up.

Where do I start?

I'm going on holiday for a couple of weeks and set a ping site A -t to a text file
so I can check it when I get back. But if you had any pointers I could look at on my return.
That wouldbe great
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Question by:Majicthise
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Expert Comment

by:Will Szymkowski
ID: 33596002
Have you tried checking the event viewer to see if you can find anything related to this issues? Does this happen if you use a different Windows Profile for remoting in with?

If you do a "tracert" for command prompt are any of the hops dropping? Also, have you tried to do a ping -t 192.x.x.x to see if you have consistent latency?
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Expert Comment

by:Rick Hobbs
ID: 33596073
You may want to try a hostmonitor to monitor the RDP availability rather than just using ping.  Whats Up Gold is excellent for that use but is not free.  There are some free ones that also do the job.
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Expert Comment

by:solvedata
ID: 33600985
I've had a problem like this at a customer site. Took me days to figure out - turned out to a network teaming issue with the NIC cards on my servers. I recommend a monitoring tool that can look end to end - at the network, server, and application - see http://www.eginnovations.com/web/terminalservermonitor.htm
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Author Comment

by:Majicthise
ID: 33755385
I'll have a look
Ping didnt drop once
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Accepted Solution

by:
Majicthise earned 0 total points
ID: 34213006
Think it is down to BT issue.
They did some work and it's sorted it seems...
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Author Closing Comment

by:Majicthise
ID: 34237185
NA
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