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Very Wierd User Authentication Issue

Posted By:      Posted Date: September 10, 2010    Points: 0   Category :SharePoint
We recently had a new starter for whom HR assigned the wrong Windows user name (his initials are P.S. and he got the username pc12, which should have been given to another guy who was starting at the same time...) It took a little while before this came to light and by this time the user had logged on, accessed a bunch of applications etc... Eventually, everything gets straightened out in AD and both users now have exactly the right records. The only problem is SharePoint. Profile information is fine, but (and this is the weird part) when P.S. accesses the site, he gets 'Welcome Pxxxx Cxxxx' (the other guy's name). We have been trying to resolve this for days now, so there has been plenty of time for any required replication and there have been about 100 iis resets. Now get this, when P.S. accesses other internal Web sites, he's authenticated fine - it's just SharePoint! I sense a support call coming on, but if anyone else has seen anything like this it would be great to hear any ideas.

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