Unexplained complete wireless failure.

On tuesday morning i was using my iPod Touch over the wireless internet perfectly fine, then i left for 2 days and got back on wednesday afternoon to go training with the Navy. A while after i got back, i decided to go on the internet on my iPod, and it won't work, it says "Operation failed: invalid argument" which is what it does when it has no connection at all to the internet. Ok then, i'll go on my xbox and play online a bit. Won't work, won't connect to router.

Nothing has changed, and yet it's not working at all. After fiddling around with passwords and reseting the router twice and whatnot i've managed to make my iPod get through the passwords and have 3/3 bars of connection, but it still refuses to work and I'm really confused!

someone help, please!

Try changing the WiFi channel on the Router. It maybe something locally has changed since you last connected (ie a neighbour has new equipment). If you are on Ch.1 try Ch.6 and then Ch.12 but you may need to try all the channels from 1-12 to see which is best. Good luck!