Here's what happens when my system tries to report a result to WCG:

5/17/2015 10:28:29 AM | World Community Grid | [work_fetch] request: CPU (0.00 sec, 0.00 inst) NVIDIA GPU (0.00 sec, 0.00 inst)
5/17/2015 10:28:29 AM | World Community Grid | Sending scheduler request: Requested by user.
5/17/2015 10:28:29 AM | World Community Grid | Reporting 1 completed tasks
5/17/2015 10:28:29 AM | World Community Grid | Not requesting tasks: don't need (CPU: job cache full; NVIDIA GPU: job cache full)
5/17/2015 10:28:32 AM | | Project communication failed: attempting access to reference site
5/17/2015 10:28:32 AM | World Community Grid | Scheduler request failed: Unrecognized or bad HTTP Content or Transfer-Encoding
5/17/2015 10:28:32 AM | | [work_fetch] Request work fetch: RPC complete
5/17/2015 10:28:34 AM | | Internet access OK - project servers may be temporarily down.

It didn't have any problem uploading the result, just reporting it.

It's not having any problem with the 10+ other projects the computer is attached to.

-- David

I don't know what caused it but I've kept trying and the error eventually went away and it accepted the report for that workunit. I didn't reboot or reset the project or anything like that. I still wonder if anyone else was having the same problem.

I don't know what caused it but I've kept trying and the error eventually went away and it accepted the report for that workunit. I didn't reboot or reset the project or anything like that. I still wonder if anyone else was having the same problem.

David-the issue was clear in your error:

project servers may be temporarily down

They may have gone down briefly.