@Toastandjam1 

Try putting   http://192.168.1.1  rather that just   192.168.1.1

Browsers usually try to add a HTTPS  (secure) to the start if you just use the IP address, telling it its a standard HTTP may solve this for you. 

What error are you getting when you try this address?   feel free to post a pic, usually helps identify issues.

or try  http://tplinkmodem.net   instead and see if it finds it that way.