Wireless Connection Issues

[crosse91]

Hey all,
I'm having muchos problems currently with my wireless set up. I can't connect (Waiting for IP assignment), and when i do, (1 in 10) its a limited/no connection. This hasn't been happening and only started last night/today. My roomates lap top is connecting to our wireless just fine.
As an aside, windows automatically updated itself last night, but didn't seem to tamper with the internet settings at all- what effect do you think this had on my problems?

Also, i've tried connecting with the standard microsoft firewall on/off and ditto for virus protection.

I've also restarted the router (just pull the power plug) a couple times.

If my questions too vague let me know and i'll try and nail down some specifics.

Thanks,
crosse