Hey , I have 5 Phones in which 2 of them only supports 2.4ghz wifi network and other 3 support dual band networks.

the problem is the phones which supports dual band is able to connect to router but not able to login into it , Screenshot attached.

I tried 192.168.0.1 and tplinkwifi.net but the pages keep loading forever.

as for the phones which supports 2.4ghz network is working fine and able to login into archer c6.

i have tried resetting , rebooting , switching tp link ids but to no avail able to login from dual band phones.