Hi everyone! I'm a complete newbie to the site and I was hoping some people that know a lot more than I do can help me!

My roommate has a usb modem and she uses her comp (a mac) as an airport so we can share the internet. I have had lots of problems with it in the past. For the past few days it only works when it wants to. It said connection unsuccessful but didn't give me a reason why. I did all the recommended things. I reset the wireless network adapter. I change the setting to automatically get get a new IP address. I removed the connection from my saved networks.

Yesterday it was working fine. And now today it disconnects from the internet literally every 60 seconds. I have it set to automatically connect to the network when available so I don't have to keep reconnecting manually. I'm not sure if I changed anything unconsciously when trying to fix the problems last week. I saw other posts that included something about firewall settings but I don't really know what to change or look for an don't want to inadvertently ruin a needed setting.

Again, I am not computer savvy at all, hoping someone here can help me!! Thanks!!

-Lee