[ubuntu] Belkin N wireless USB adapter. Can see neighbours wireless but not my home network

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http://ubuntuforums.org – The stick is OK, and all the other networks next door appear, however my local network is absent.The network shows up and works on my laptop running xp and windows 7 via their internal adapters. It also worked fine in the desktop 30 mins before I loaded Ubuntu 9.1 on top Stick is Belkin N Wireless Adapter bundled with Belkin N Wireless router Z528 ref no. So how can I get this adapter to pick up my home network? Thanks for any help / advice. (HowTos)