How do I get my Linksys working again?

Hey all. My problem has to do with the fact I thought I could get WiFi on my Wii. Well, I didn't know my WEP code and somebomebody suggested I just hard reset the router. My problem is thta now I can't get my computer to access it. I tried to use the 192.168.1.1 code, but it just won't go to where I can sign in (I know, when it's reset that it is SN Admin, pw:admin) So yea...now niether my computer nor Wii can access my linksys (I had to re-plug the modem directly into my comp to get on) What can I do to fix this and what did I do wrong?