Help Please

I had to update my PS3 today and the only way to do it is internet. So I update it over the wireless linksys that I have in my house and been using for over 2 years now. My PS3 had never had a problem with connecting to the internet. Well after I installed the new update I can not get on with the wireless connect. I have tried strieght from the rotor and it works. I have with the wireless gone to the network settings and redid them but sit nothing. Anyone have any ideas.

Cliff notes:
Did a update on PS3 on wireless internet.
After update PS3 will not let me online.
If plugs in right from rotor internet works.
Reconfigered PS3 internet settings (to wireless) still not working.
Want to throw PS3 out of window.

re-start your linksys?