@AlanUKWatson Don't want to interfere, but it may help you along.. I used to use a net duma router which to connect to sky required some specific instructions for option 61 using these Client...

Is x60 version 3.0 used in the x60 3.20 because there is no direct download of firmware within the link when I choose 3.20? Also the version number in my 3.20 seems to be higher than I can see here...

I am not sure that TP-Link understand the concept of the claim of 'network optimization' because optimization 'The action of making the best or most effective use of a situation or resource', is far...