Google: "I couldn't reach the home assistant cloud by Nabu Casa"

Hi, This has been happening regularly for a few weeks. Occasionally my TV will pop up a message for authorisation from home assistant even though it was authorised the day before. How can i begin to debug this? I’ve tried relinking home assistant in Google Home many times, rebooting etc. Im at a loss.

I believe this is still happening and posting here is good for us to see if other experience a same problem. BTW I did sent email to nabucasa and have not receive any response.

My point is also that another thread already exists.