I have a SBS 2003 domain with several workstations. One workstation can log on just fine like all the others, but once logged on every time it tries to connect to the server it asks for username/password again. Trying to use an SQL 2005 application on that machine results in connection failure because of this as well. The user has no problem connecting to the SQL app from another workstation, and other user accounts on this workstation fail on the app as well, so it's definitely something in the workstation. What would cause the server to repeatedly ask this machine for credentials? Thanks much, -Brent

Try removing the PC from the domain and then readd it to the domain and see if that doesn't straighten the issue out.

Sorry for the late reply. I was out of town and didn't hear back from them so I assumed (incorrectly) that the problem was fixed. I've tried removing the computer from the domain altogether, and removing the computer from the list of domain workstations, and the problem still persists. For all the other workstations, once logged in the server can be contacted without any supplemental authentication, but not this machine--it needs a username and password still. Since the SQL server also requires authentication, the app still fails as well. Anything else worth trying? And thanks again for any replies. I'm totally stumped on this one. -Brent

check both system to see if simple file sharring is turned on. if so turn it off and see what happens.