Your PPPoE login credentials should already be visible in the TTB router. On mine its
[email protected]
ttb1234
and entering the above into any third party router works for me. Yours might be in the format of <linenumber>@talktalkbusiness.net but whatever it is, the same credentials should work on any other router.
Not surprising the TT wifi hub appears to give you a better wifi signal than your Asus RT-AC68U, the TT kit is a 4x4 router whilst the Asus is only 3x3. If you can live without the firmware features of the Asus then I suggest you use the TT wifi hub, primarily for better wifi.
Edited by deleted (Wed 18-Nov-20 21:24:22)