LR 5.0 loses connection to the internet under heavy load.

OK, i posted this before and it got moved to a thread where people couldn't connect to the Adobe Servers.

This is not the same issue. I have no trouble connecting  to the servers, but if i try and download more than a few original raw files, or when i havent opened LR 5.0 for a while but have added photos, i sudeely get the no internet connection error. I havw to close the program and re open it, and then it works ok until it doesnt. 

So, heavy traffic and it gives up and says there is no internet, light traffic (edits, smart previews) no problem. 

Windows 10 64bit. My download speed is 50-60MB/s, ping time is under 10ms, and no issues with any other cloud based services.