We have upgraded (clean installs) some computers to XP Pro (SP1) connecting to a 4.0 domain (all SP 6a). Everything works well but slow browsing to network shares on servers and workstations -- sometimes takes up to 30 seconds. This only occurs when first connecting to a share. Then it works well until the machine is restarted or isn't used for awhile. Also, connecting by UNC rather than drive mapping is faster. We are using Wingate for DNS (not a true DNS server) and WINS for name resolution. We will be upgrading the servers to 2000 shortly but cannot at this time. All TCP/IP tools I have tried work well with no errors and name resolutions works fine. The WINS database looks good. Adding a second DNS server is difficult because Wingate doesn't work well with another one. I am not that familar with Wingate -- just my understanding. Some of the things I have tried are:
Disable net crawler (no affect)
Put IP and hostnames in the host file (helped some)
Used MS 315237 - High Rate of Collisions on 100 MB Network (no affect)
Installed newest NIC driver (no affect)
Used MS 318266 - Disable Digitally encrypt or Sign Secure Channel data (no affect)
Used MS 811492 - It may take 35 seconds to delete files with Windows XP SP1 (helped with the deleting problem but not with browsing)
Used MS 310353 - Clean Boot (no affect)
Ran Netdaig (showed no problems)
Net View (no problems)
Nbtstat (show no problems)
Enable Netbios over TCP/IP (no affect)
Turned off QoS (no affect)
Checked cables (no problems)
Event Viewer shows no related errors
Used netsh int ip reset to reset IP stack (no affect)
Nslookup on the Wingate - shows some errors. (again not that fimilar with Wingate)
We are using Cisco switches which may be the problem but don't think so. All workstations have identical hardware (HP Vectra - same model). Finally, all workstations running NT 4 or Win 2000 have no problems whatsoever.
Please help!
