TF400324: Team Foundation services are not available from server…


Full Error

TF400324: Team Foundation services are not available from server <Server/CollectionName>. Technical information (for administrator):   Page not found.

Problem

This error could occur if you have moved a collection from one server to another and a client application connects to both servers. In my case this is because I’m running TFS 2012 on one server for production use and have backed up and restored a collection to a newly installed TFS 2013 Preview so that I can configure the process template (Upgrading to Visual Studio Scrum 3.0 process template in TFS 2013) to take advantage of the new features in 2013 and test that before moving/upgrading the production server.

Quick Fix

As a quick fix you can

  1. Close Visual Studio and related apps
  2. Browse to %LocalAppData%\Microsoft\Team Foundation\4.0\Cache and delete all the contents of that folder

This isn’t ideal as you will need to do this for each client and every time you switch between the 2.

Better Fix

As a better and more user friendly fix, you can

  1. Do the Quick Fix
  2. TS to the server where you have The new TFS server with a copy of your collection attached (my TFS 2013 instance)
  3. Open a command line window in Administrator mode
  4. Run cd “C:Program FilesMicrosoft Team Foundation Server 12.0Tools”
  5. Run tfsconfig ChangeServerID /sqlinstance:<Your Sql Instance Name> /databasename:<Your configuration Database Name> /ProjectCollectionsOnly
  6. This should bring up a message that says “The command ChangeServerId should only be run against a set of Team Foundation Server databases that have no application tiers configured. Do you want to continue with this operation? (Yes/No)
  7. Type Yes and hit enter

Now you should be fine to use both instances of TFS with the same collection name without issues

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