The next time it happens try unplugging the cable from the NIC for 10 or 15 seconds and then plug it back in and see if the server will let you login again. If so, I have seen this before and the only way I have found to fix it was to roll back to Win2kSP2 on the Citrix Servers. Do a search for dwatson (some guy from Bermuda who was having the same problem - not Dr. Watson) on the citrix user forum and you will a bunch of posts about this. I am kind of interested to see if win2ksp4 will fix this for me. Good Luck, -Jay -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Michael Hagberg Sent: Monday, June 30, 2003 5:00 AM To: 'Thin (E-mail)' Subject: [THIN] User session hangs Server: W2K SP3 with MF XP FR2/SP2 Citrix Hotfixes : XE102W022, 029, 066 Server Hotfixes : Q322845, 322913, 323172, 324096, 324380, 326830, 326886, 327269, 328020, 329115, 329834, 328310, 328981, 329170, 331953, 810833, 329553, 811493, 814033, 815021 DataStore : SQL DataStore OS : WK2 DataStore SP : SP3 When a user logs on to one of the Citrix servers it hangs after awhile. When the user terminates the session on his local machine and tries to log on again it stops at the windows logon page. When looking in the CMC on the server we don't see any users at all but we see there processes for a short while but they also disapear after about 2 minutes. The only thing that helps is to reboot the server. This problem firts occured after installing the following Citrix hotfixes which later was removed, XE102W013, 059 and 057. Any suggestions? Thanks a million Michael