Connection to server lost, returning to main menu

Now maybe it could be written off as my internet being bad or too many units, except...
-There weren't many units in the game at all
-My teammate got the same message while we were in a skype call

Why does this happen? Please fix it. Its relatively rare, but extremely annoying when it happens.

Sounds like a server crash

https://forums.uberent.com/threads/lets-eradicate-server-crashes-in-this-thread.67005/

Yea this happens more than I think it should, sorta like the elephant in the room. This is just one more thing uber desperately needs to take care of so players don't rage over server crashes instead of winning/loosing games

I've had this problem even when I set it to a local server and not playing off online rented servers.
But it wasn't recently.