i have this error
04:58:37:ERROR:WU02:FS01:Exception: Transfer failed
04:58:57:WARNING:WU02:FS01:Exception: Failed to send results to work server: Transfer failed
04:59:18:WARNING:WU02:FS01:WorkServer connection failed on port 8080 trying 80
04:59:39:ERROR:WU02:FS01:Exception: Failed to connect to 140.163.4.241:80: 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.
i put 4 gpu on my rig
2 of my gpu stuck on 99.99% progress status running for almost 12 hours
1 of my gpu stuck on 100% progress status sent for almost 6 hours
and the other one normal
i tried to restart my pc but nothing change just the same

Do what I did above and all should be fine. I ponsed about with it for a few hours and then gave up and uninstalled and re-installed. MAke sure you clear the data and config as well
I went onto IRC, the client should try and find another Work Server but for some reason it just isn't