cant connect devices to new wifi

update 2:  after a lot of talk today, suddenly I am again at 226Mb up and 56 down.  I guess it is worth shaking the chains and ringing some bells.  I did have to re-call service until I got a stateside worker,, and, it looks like I got a half month's refund (lol).   There was a period of some minutes without any connection at all and I reset the gateway just in case… all settings preserved btw.

Also, it seems my TV might be too old (2 years) to get connected directly.