Process quits responding if I lose my internet connection

[manefraim]

If I lose my internet connection, first I get the appropriate "network not responding" message,
and it acts like I don't have an internet connection.  However, if the connection is out for long
enough (maybe 30s to a minute or so) the game completely quits responding to the extent that
I can't even close the window.

If it helps, I'm running Warframe in windowed mode on windows 8.1 on a Lenovo W530.