We are having an odd issue that started to occur about two weeks ago on one Windows XP client. We have a Windows Server 2003 network running with about 40 Windows XP and 1 Windows 7 workstations. We have a file server sharing to all authenticated users from a 2003 server. We run over a 1GB LAN.
Recently, one Windows XP workstation has shown sluggish file transfer speeds when accessing SERVER1. To move a 20MB file typically takes a second or two. On this workstation, it takes about 45 seconds. No other XP workstations are having this issue. This workstation can access any other server without a problem. Also, it seems that we can upload at normal speeds but when we try to download from SERVER1 it comes to a crawl. We looked at the switch and found no errors or collisions. We switched network ports with no change. There are no errors in the event logs on either device.
Here is what we tried:
Run antivirus, malware and spyware scan
Disable Windows firewall
Uninstall Symantec Endpoint
Force the NIC to run at 1GB full duplex then 100MB full with no change
Switch network ports
Log on as a different user to see if it was a profile issue
Update the NIC drivers
Check HOSTS file and IE for any proxy settings
Reinstall XP SP3
Our last ditch effort will be to swap the NIC card and see if the problem still occurs.
We are at a standstill trying to figure this out and would appreciate any suggestions.