I am in Western Australia, on a telstra ADSL connection, using a Technicolor TG587n V3 modem.
I was experiencing constant crashes, getting worse with each patch, until the game was virtually unplayable.
I did some research, and there are rumors on the interwebs that the above modem thinks MWO (among other games) is a Denial of Service (DoS) attack, and acts accordingly.
I went and purchased a Netgear D6300 Modem Router and set it up last night.
Went from crashing out every 4 out of 5 games..... to no crashes for a whole evening of play...
Hope this helps if you are having trouble.
Edited by ElCadaver, 29 May 2013 - 04:41 PM.