Windows Server 2008sbs running exchange 2007 Authentication to

Hi Experts,

When our users open outlook, outlook try's to authenticate with when they enter their username and password it fails to authenticate.

The server is fully patched and running Exchange 2007 SP3 Rollup 2.

It was doing this on all our workstations before applying the latest updates to exchange. Now only our XP clients are having this problem. If they close the login box it will allow them to carry on sending and receiving emails, it’s just a nuisance.

Thank you
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Glen KnightCommented:
Kernel Mode authentication is mown to resolve this issue.
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