I'm trying to do a migration upgrade from TFS2008 to TFS2010 - so I'm installing everything on new hardware. Followed the MS instructions to the letter, and restored databases and encryption key from original server. All seems to appear fine, right up through the Upgrade Wizard, Readiness Checks etc. then it runs through the Upgrade process and fails with the error TF246017: Team Foundation Server could not connect to the database.
It is a single server install with SQL 2008, and WSS 3.0, on top of Windows Server 2008 R2.
Hope someone can help me please...