At least I found here SSH to the Router - GL.iNet Docs that I need to use root as the username, but with my set admin password. I tried different methods to verify that there is no cut & paste error of the password, I even used “putty.exe -ssh root@192.168.8.1 -pw [here is my too long password]”. All to no avail. I get as response from the server by my root and password are not taken.