I have a Sony Bravia TV
About 2 weeks ago, I noticed that my TV wasn’t connected to the internet (after trying to load up Netflix).
So I tried to connect through Network settings as this usually solves it, however, it didn’t. I even tried a soft TV reset via TV remote control, but this didn’t solve it either.
So I reset my router (BT HH6) and this solved it.
However, a week later I encountered the same thing and I don’t want to keep resetting my router as I shouldn’t have to.
From googling and researching Sony and BT community forums etc, other people have experienced similar problems where it points to a potentially BT HH6 issue.
I did upgrade mid September and received the BT Smart Hub 6 and everything had been fine (previously, I had the BT HH5 and never had this issue before).
My mobile, desktop PC, console and Sky are all connected btw. (I have turned off smart setup in the hub aswell).
(Btw, TV is connected via ethernet cable)
Log on to your hub and check if the TV is shown as connected, if not try setting a static IP on the TV settings see if that helps.
Are there any powerline adapters etc involved or is the TV cabled directly to the hub?
Have you separated the 2.4GHZ and 5GHZ bands on your Smart Hub. Your Sony TV may only use the 2.4GHz band and is getting confused if not separated.
(Don't forget to alter settings on TV if you do split)
There have been issues with Panasonic TVs having similar issues because of BTs DNS servers and the solution has been to setup the TV to use Google’s servers of 126.96.36.199 & 188.8.131.52.
I’ve no idea if this is the problem affecting you but might be worth a try.
OP posted tv is connected by Ethernet so splitting networks is not going to help