EDIT: I reset my router and it was the culprit.
Since removing the temperature plugin, no crashes.
However, the box still won't update apps, dockers, plugins or OS versions. JSON syntax error on the community apps page.
I downgraded from 6.12.3 to 6.12.2 and since it won't connect, three of my plugins failed (dvb, nvidia, qnap), so of my docker containers won't run.
I've searched for the syntax error and that usually is resolved when GitHub is working, but GitHub isn't/wasn't down.