It makes me think of the British show the I.T. crowd, where the tech support for the company is always answering the call with "Have you tried turning it off and back on again?"
we switched back to our roku TV that's hardwired, no issue since it's not using wi-fi. But the wireless roku device started staying connected for a month or so before I repaired the TV, so my guess is maybe the software/firmware got updated. I guess we'll find out next time we need it when traveling.