I have added the K2 Worklist Web Part to two of my sharePoint 2010 sites, one site (siteA.domain.com) shows my workitems assigned to me, the other (siteB.domain.com) shows no rows (no items). Both sites run under the same server, both run under the same app pool identity. Both have K2 enabled the same. When I turn on logging I see successful hits for the successful site. However the other site throws a message saying that I am NT AUTHORITYANONYMOUS LOGIN and :A mismatch between the end user and the connection credentials has been detected. I've looked around with no luck. I tried the DelegationContext setting in the config to set it to Clientwindows, also no luck. Thoughts are very welcome.
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