Apple devices dont connect to the network.

Hi everyone this is the 1st time im on the forums here so...

I have an Ipod touch 4g , i have it for about 9 months and i havent connected it to the internet ever. Some friends of mine came to my house with their iPhones and they coudnt connect either.I have tried to reset my Ipod and router 2-3 times , i have tried the option "Reset Network Settings" . I really dont know what to do... I am thinking of buying a new router because of that. Any suggestions how to fix the problem , i dont really want to buy a new router.

Many thanks!