Wirless Router only Lets 1 Device or it crashes, Any ideas?

I have a wgr614 V6 router, yes its old. I had 3 devices connected to it just fine before without any issues. But now It only allows my laptop, when I try to connect with my ipod touch or desktop, not only does it fail, the entire network crashes and my laptop loses it and its gone. It then takes about 2 minutes to come back up. So whenever I attempt to connect with another device the network crashes. so right now only my laptop is connected.

I downloaded & updated to the newest firmware, did not work.
I tried resetting the router, and made the network all over again, did NOT work.
I tried doing "wireless B only", did not work. Any ideas?


Not sure what to do??
Thanks!