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Terminal Server/Remote Desktop Black Spots/Splotches

Posted on 2007-08-01
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Last Modified: 2013-11-21
I am running a WIndows Standard 2003 R2 Server with Terminal Services as a Virtual Machine using VM Ware. Users are connecting to the Terminal Server with Wyse XP embedded thin-clients via RDP V6. Users are reporting black splotches appearing after working for a couple of hours. Logging off and back on or closing the Remote Desktop Connection and reconnecting resolves the problem. Has any one ever seen this behavior on a Terminal Server session before?
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Question by:menreeq
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Netman66 earned 500 total points
ID: 19613851
Tune the RDP client for the LAN, and perhaps uncheck some of the boxes on the Experience tab.

It sounds like there is congestion on the LAN segment.  

You could always look at some network performance data from something like MFRC.
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by:Rob Williams
ID: 19613924
For the record, last post in the following link implies this is a known issue with the Wyse units. Have you tried contacting them, or updating the firmware?
http://www.vmware.com/community/thread.jspa?threadID=63429&tstart=0
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by:Netman66
ID: 19614458
Good catch Rob!

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by:Rob Williams
ID: 19614470
:-) Don't you love Google
How's life Netman66 ?
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by:menreeq
ID: 19673781
Tuning the RDP client worked, it was a combo of having it set to 32-bit instead of 16-bit and Bitmap caching. Thanks
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by:Netman66
ID: 19674518
Hi Rob, sorry I missed your post.

Glad to help menreeq.

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by:JonBurns
ID: 26417550
For our organization, just disabling the Bitmap caching seems to work.
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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