Knew about microwaves and fish tanks. Think I’d wholly forgotten mirrors.
My father is now has something to justify rearranging the living room.
When I had a flat in North London many years ago my upstairs neighbour was surprised to open his door to my knock to find me holding a laptop and asking if he’s just microwaved something . My WiFi glitched fairly often for a few minutes around meal times and his flat seemed the likely source. I asked to have a look at his microwave, the seals were shot everywhere (he was a post-grad student renting), I bought him a new one.
(He did rather look worried whenever he saw me after that.)
Microwave ovens are required to be shielded by legislation, but a small amount of leakage is allowed. This leakage may be small in terms of safety, but it’s not that small compared to the output of a WiFi router, so they can easily interfere even when new and functioning properly. The frequency at which microwaves function happens to be extremely close the the 2.4GHz that is used by WiFi, which is why wireless devices are susceptible.
Perhaps that’s why our QB2 in the kitchen loses its WiFi connection more often than the QB1 in the bedroom, even though the latter has a reputation for iffy WiFi performance.
Roger
Our kitchen QB2 used to cut out regularly when the microwave was switched on. It was just a basic Panasonic microwave, a few years old but not ancient. Since we replaced it I haven’t noticed dropouts using the new combi air fryer/microwave.