That reminds me of how the manufacturer's customer service department for my car some thirty years ago tried to convince me that the problems with the ignition electronics could also be caused by solar flares. Which could have been the case, of course, but then it would surely have affected other vehicle owners as well. Though, maybe the sun did shine just for me back then, you can never be sure, can't you. I briefly considered consulting an astronomer.

There was a funny story about how sun shining on a UV sensitive electronic component was the root cause of a mysterious failure that was time and day dependent.