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Problem: Intermittent rdp session freeze up. Effects most user RDP sessions not all. Some times the freeze may disconnect the RDP session and reconnect. This can happen 1 or 2 time per day or may only have 2 times per week.

Terminal Server Hardware: HP Proliant ML350 G6 running latest Windows updates, HP support pack, BIOS and firmware. Dual Intel Xeon 2.4Ghz CPU's, 24GB memory, HP NC326I Dual Port Gig network card. RAID1 - 2 HP SAS 10,000 hard drives. No data or databases on TS.

Software: RDS on Windows server 2008 R2 x64. Client applications: ERP, Office 2010 32bit. Running latest MS patches.

User connections: HP thin clients (10 users) running Windows XP Embedded or Windows 7 embedded. One or two user connects via RDP on older XP computers and experiences the same freeze issue.

Printers:Print queue are on a file server and mapped for each TS users. No issues printing.

Network hardware: New HP 1400-24G Gigabit lan switch. I have gigabit for almost all RDS users.

Completed troubleshooting: 1. Connectivity - Pings to TS during freeze show no problems, low ttl. 2. Troubleshooting HP Network card: Updated drivers turned off flow control, TCP\IP Checksum Offload.

  1. Opened case with MS support: Fixed a corrupt RDP client certificate issue I had x.509 I think? and applied a few hotfixes that seemed to help. Users stopped complaining as much.

  2. Updated RDP versions on all thin clients and PC's. RDP: No printer redirections, turned off bitmap caching - no difference.

  3. Started performance monitor and running a number of counters - Currently. I have a number of counters setup but I am not sure what what is bad or normal?

I will try to attach performance monitor reports.

Any thoughts or help troubleshooting would be great.



share|improve this question
What do the logs show? – Lizz Jan 5 '13 at 6:46

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