It's the user name and the password you have set in order to authenticate in the router web interface. A simple login attempt ends up with an error about not being able to create a TTY. Consequently,...

I have realized I haven't attached the settings of the 5 GHz interface. Here they are.

Model : Archer C5 Hardware Version : Firmware Version : 3.14.3 Build 150428 Rel.75843n ISP : RCS & RDS A couple of years ago, I have bought an Archer C5 V1.2. From the very beginning, I have noticed...