Cannot connect to 192.168.1.1

You must check if your PC is getting correct IP from your router by running ipconfig on DOS command. The Default Gateway must shows 192.168.1.1. Just to be sure this IP is accessible, run a ping test (Ping 198.168.1.1).

C:\Users\PC>ping 10.1.1.1

Pinging 10.1.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

Ping statistics for 10.1.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\PC>

You will see the above results if the test is successful. If it failed, possible a Firewall is blocking the PC to access the Router. Try to disable it and see if it will works. If the same issue or even the test passed but can't access the IP address, reset the router to factory defaults by pressing the small hole at the back of the router. Then do the above steps again to see if you can now access it. Hope this helps.