I dont think you can change the assigned server for the WU in anyway. I could be wrong but i dont think you can mate.
+ Downloading new core: FahCore_a0.exe
[13:51:44] Couldn't send HTTP request to server (wininet)
[13:51:44] Couldn't download www.stanford.edu
[13:51:44] + Error: Could not download core
[13:51:44] + Core download error (#20), waiting before retry...