Problem: Installed Server 2003 SP2 on my exchange server and all went well. I, however, had issues accessessing files and my mailbox. I could access all the other servers fine but not this one. To top it off, the other users in the office weren’t having any issues so I knew it was a problem with my box. Tried everything from rebooting, updating vista, removing programs but nothing would work. Finally, I realized that I’m the only one on the network with Vista and that was the issue.
Solution: Did some searches and found out that the Vista TCP/IP “Receive Window Auto-Tuning ” was the issue. I executed both commands below, rebooted and all was well.
netsh interface tcp set global rss=disabled
netsh interface tcp set global autotuninglevel=disabled
Thanks to Diva Blog for saving me some time troubleshooting this.