We have an 8gb mobile broadband plan. Our usual data stick is a telecom branded one (most recent model) but it stopped working (after only two months) so is currently being repaired.

Telecom have loaned us another stick in the interim - sierra wireless compass 885.

My partner and I link our laptops via crossover cable so we can both get the net off one connection. This worked fine with the telecom t-stick, but we cant seem to get a decent connection on the laptop without the stick using the sierra wireless stick. 

Installed the stick on both laptops, kept the settings the same as our other data stick and no joy. Initially we managed to get a connection - but it kept dropping off. Now we cant even get a connection on the second laptop (the connection on the host laptop is fine).

I swear I have uninstalled, restarted etc about 4 times but still no luck :(  

Any suggestions?