Client says I am 'offline' as soon as game is queued

I am online and can access client and queue games but as soon as it appears one is queued message displays saying I am offline and have to reconnect.
This a new problem on both pc and iphone, never had the issue previously.
This appears to be the same as a thread last posted Apr 2023. Tech support seems to have been less than helpful so I am not hopeful but any new info/ tips would be appreciated.