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I checked and the only prefered network is mine. Its strange. Like one day it will work and the next it wont. When i typed this post yetserday it was doing it constantly. Today i havent had to repair it at all.
That is good, but I believe that if they are not detected then they do not show up in the list.. Keep checking to see if others are in the list.. Especially when the problem starts.
Another thing to try is uninstall the wireless card and reinstall it.. Check to see if there are updated drivers first...
This is why I hate Wireless... I don't recommend it unless it is absolutley necessary..
Do you have a laptop? If you do try moving around with the wireless utility running to see where the best signal is..
Lastly I would try another router.. See if one of your neighbors will give you access to theirs to test for a couple days.. Remember to turn yours off.
Looks like you are ready to test your computer on another wireless system. If it is a laptop take it on campus or any hot zone & see if you can connect. If it is a desktop, then it is time to meet the neighbors & hopefully they will let you onto their connection for a test run.
If you are looking for hot zones network stumbler is a nice one that finds more than my broadcom software does.