I don't think this is the ultimate solution, but it worked in my case. In the NIC configuration dialog box, under the Power Management tab uncheck "allow the computer to turn off this device to save power". I had the same problem as you did, and this seem to take care of it.....although I have some machines not having problems...and the this box is checked....so like I said, don't know if this is the perfect solution, but it worked for me. JIM HERCHENBACH RVW Inc. -----Original Message----- From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of Nick Smith Sent: Wednesday, September 08, 2004 9:31 AM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Clients losing authentication I have recently installed a W2K3 (Which makes this tehoretically OT) Small Business Server. 1 clinet PC (windows 98), about once a day, loses authentication to the server - can no longer acces files, shares that she was able to previously. Reboot fixes this. I *think* - though she is unsure about this - that it happens after she's not been at the PC for a while (IE may be to do with some sort of time-out/suspend). Another client PC (XP Pro) on the same network has had similar symptoms on one occasion (Where it had nto been used for 4 hours). Any ideas? Nick ******************************************************** This Weeks Sponsor StressedPuppy.com Games Feeling stressed out? Check out our games to relieve your stress. http://www.StressedPuppy.com ******************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm ******************************************************** This Weeks Sponsor StressedPuppy.com Games Feeling stressed out? Check out our games to relieve your stress. http://www.StressedPuppy.com ******************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm