I have a Linksys router. WRT610N is the model number. It is working fine. However, I do need to make some changes in it. I do have the username and password but I cannot get the router main page to come up so that I can enter the router. It used to be 192.168.1.1 but that is not working. I tried 1.0, 1.2 & others to no avail. How can I determine its number? Note, I am using this router now via an external access wifi point. The routers radio is turned off.