Wednesday, January 25, 2012

Select the credentials you want to use to logon to this SharePoint site

Our users came across the following error when they were trying to login to their My Site (http://mysite/):

We had recently had to restore the My Site from a backup and it appears the restore process had changed the authentication type the extended website http://mysite/ was using from Kerberos to NTLM. We have another version of the site published as which was still set to Kerberos hence the authentication error.

The fix was to go into Central Admin - Manage Web Application (My Site) and then select Authentication Providers. I selected the offending Intranet zone and changed it back to Negotiate (Kerberos) so it matched the other Custom zone:

After an IISRESET, the error stopped appearing.

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