When I've seen seen any issue like you describe, it has to do with the local network, not sonicorbiter.com. For example, I use Eero mesh routers and look at my eero app to confirm that the rendu and sonicorbiter are visible and active on the network. Eero software updates have auto-installed requiring restarts of connected devices. If I don't know that happened, I might think the devices are giving me trouble.
With my opticalRendu, I have on occasion found that unplugging and re-plugging fixes things that a software restart doesn't. No idea why.
Cheers,
Spencer