My computer will not connect to the internet when I hook up to the Linksys wrt150n I don,t understand It because it use to work this is about to drive up the wall I have tried resetting the router but it still dosent work but I can hook up my computer straight to the wild Blue router and the internet comes on no problem this is crazy why cant things be more simple thanks for any help on this matter.

If you can connect to the Internet using the LAN cable then your Internet connection is OK.
If you are trying to connect to the Internet using the wireless connection, then your problem is the wireless settings in either the Linksys or the wireless card in your computer.
First check the wireless settings in the Linksys, ie. the SSID and encryption key.
Second check the wireless settings in the computer's wireless card, this must match the route's wireless settings. If it matched then do a Repair connection. this will get the Linksys to issue a new IP address to the wireless card.computer.
If the Linksys wireless settings were changed then configure the wireless card in the computer with these new settings.
Please click on this link for further diagnostic procedures on network problems :-
http://www.fixya.com/support/r4229966-network_diagnostic_procedures