Are you logged onto the LAN or WLAN? What is your gateway address that shows up by running ipconfig from the command line?
Usually your gateway will be the location to check for an http/https server. I hope that helps.
How is the pc connected to the router? If it is connected directly please make sure that you are able to reach the router by issuing the command "ping 192.168.0.1" from a command line terminal. To open the command line terminal press windows button+r then write cmd and finally enter. If after that test the result is positive and the reachability is successful you should be able to access to your router by writing the ip address 192.168.0.1 at the address bar. Instead if the connection betwwen the pc and the router is not direct please advice the topology. Finally make sure that the ip settings of your pc is set manually just in case the dhcp server is not enable on the router, set the ip to something different than 192.168.0.1 and the subnet mask 255.255.255.0, you don't need to set up the default gateway because you are on the same subnet of the router.
Regards | Aref.