We have set up Kerberos so that we can hop between SharePoint 2007, ProClarity and a SQL server without forcing users to re-authenticate. Most of the time this works fine. However we are seeing an issue where Kerberos stops working and the application passes along anonymous login - and of course we don't allow anonymous access to our databases so this fails. We have found that rebooting one of our domain controllers (Windows Server 2003) (that also happens to be our global catalog server) we can make this issue disappear - for a limited amount of time. I dont' see anything obvious in the logs. I have run a dcdiag on the domain controller - everything passes. I have suspected for some time that we were having issues with this server but have nothing solid to point at. Can anyone give me some ideas of what to look for? Are there any additional tests I can run on this server?
Thanks in advance,
Michelle
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