showing 'Network Disconnected' when trying to connect. Vista Sp2 32 bit.

guys,request urgent help. bought Reliance Netconnect plus usb modem ZTE A2737 model, installed all drivers as required, have given correct username and password(checked zillion times nw). Still when am clicking the connect button it straight away shows 'Network disconnected' and goes nowhere !!. looks like its not even going forward and directly disconnectingUsed the same modem on different machine, its working fine.Sys Config: Win Vista 32Bit. Sp2.Has anyone faced this b4? kindly let me know.

Guys any thoughts on the above issue?

Hard to say. I'd faced this problem a few times on vista , each time rcom was at fault .

X720, so how did u move ahead then? rcom at fault means modem issues? or is it like the ZTE A2737 doesnt support Vista 32bit (which looks unlikely).