When i tried to change the LAN ip address to 192.168.0.100. Its showing as saving configuration. After 100 percent complete page turns black. Cant access the router using 192.168.0.100 or with old ip...

I am trying to extend my internet connection with this tp link archer C5 router. when i try to change ip address in LAN settings it turns error after saving the process after that i am not able to...