I also had a GPU problem today but that was solved by an Nvidia driver upgrade so I know I do not have internet connection problems.
23:54:07:WU00:FS00:0xa4:Completed 247500 out of 250000 steps (99%)
23:54:07:WU02:FS00:Connecting to 171.67.108.45:8080
23:54:08:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
23:54:08:WU02:FS00:Connecting to 171.64.65.35:80
23:54:09:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
23:54:09:ERROR:WU02:FS00:Exception: Could not get an assignment
23:54:09:WU02:FS00:Connecting to 171.67.108.45:8080
23:54:10:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
23:54:10:WU02:FS00:Connecting to 171.64.65.35:80
23:54:10:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
23:54:10:ERROR:WU02:FS00:Exception: Could not get an assignment
23:55:09:WU02:FS00:Connecting to 171.67.108.45:8080
23:55:10:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
23:55:10:WU02:FS00:Connecting to 171.64.65.35:80
23:55:11:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
23:55:11:ERROR:WU02:FS00:Exception: Could not get an assignment
16:18:19:WU02:FS00:Connecting to 171.67.108.45:8080
16:18:19:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
16:18:19:WU02:FS00:Connecting to 171.64.65.35:80
16:18:20:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
16:18:20:ERROR:WU02:FS00:Exception: Could not get an assignment
16:19:46:WU01:FS01:0x18:Completed 20000 out of 2000000 steps (1%)
16:20:56:WU02:FS00:Connecting to 171.67.108.45:8080
16:20:56:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
16:20:56:WU02:FS00:Connecting to 171.64.65.35:80
16:20:57:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
16:20:57:ERROR:WU02:FS00:Exception: Could not get an assignment
16:23:02:WU01:FS01:0x18:Completed 40000 out of 2000000 steps (2%)
16:25:10:WU02:FS00:Connecting to 171.67.108.45:8080
16:25:10:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
16:25:10:WU02:FS00:Connecting to 171.64.65.35:80
16:25:11:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
16:25:11:ERROR:WU02:FS00:Exception: Could not get an assignment
16:26:24:WU01:FS01:0x18:Completed 60000 out of 2000000 steps (3%)
16:29:41:WU01:FS01:0x18:Completed 80000 out of 2000000 steps (4%)
16:32:01:WU02:FS00:Connecting to 171.67.108.45:8080
16:32:02:WARNING:WU02:FS00:Failed to get assignment from '171.67.108.45:8080': Empty work server assignment
16:32:02:WU02:FS00:Connecting to 171.64.65.35:80
16:32:03:WARNING:WU02:FS00:Failed to get assignment from '171.64.65.35:80': Empty work server assignment
16:32:03:ERROR:WU02:FS00:Exception: Could not get an assignment
16:32:58:WU01:FS01:0x18:Completed 100000 out of 2000000 steps (5%)