From what I can see Folding @ Home has tried to upload to the same server 7 times, without trying a different one. However, I got this message in the logs about a work server but I do not know if this is related to my attempts at uploading:
04:49:48:WARNING:WU01:FS01:WorkServer connection failed on port 8080 trying 80
04:49:48:WU01:FS01:Connecting to 40.114.52.201:80
04:50:09:WARNING:WU01:FS01:Exception: Failed to send results to work server: Failed to connect to 40.114.52.201:80: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Thanks again!