Starting last night (Friday 07 Dec) my GPU folder (Nvidia 9600GSO) began downloading work units from only the 171.64.65.105 server. The WUs from this server are OPENMMGPU units more commonly known as Fermi/Kepler work units. My GPU2 client (6.23) complained of a missing dll file. Research revealed the missing file was part of the GPU3 (6.41) client normally used for this type of work unit. Both of the clients are failing with the same looping error.
The issue is being discussed in this thread - http://foldingforum.org/viewtopic.php?f ... op#p231190 - on the folding forum.
Edit: Changed thread title from "FahCore_15 outdated core loop."