Ip adress: 84.238.46.226

Model: Archer C50

Version 6.0

I just bought a router for my room and I cannot register my router on Tether app due to IP adress. According to the internet, the IP adress is supposed to be 192.168.0.1 for most TP link routers, but mine has different IP adress. It does not go back to the default setting no matter how many times I reset it. 

I cannot access to http://tplinkwifi.net as well because of the IP adress.

I want to access to either Tether app or TP link control website to connect other devices. (I can only connect one device to the wifi).