Ubuntu on Acer Aspire One cannot see or join wireless network

In case anyone encounters the same problems, hopefully this saves the sanity of these people trying to troubleshoot this.

I'm using an Acer Aspire One A150, running Ubuntu Intrepid Ibex 8.10, madwifi-hal drivers as instructed here.

I was not able to see my wireless network even though it could detect and join other networks.  The problem was caused by the wireless network being set to a radio channel higher than 11.

Possible solutions:

1) (recommended) Change the wireless AP channel to between 1 and 11.

2) If (1) is not possible for you, follow squire_uk's forum post made on February 10th, 2009, 06:11 PM for his fix.

References:

• https://help.ubuntu.com/community/AspireOne#Install Ubuntu Intrepid Ibex 8.10 on the Acer Aspire One
• http://ubuntuforums.org/archive/index.php/t-1056042.html