Curing very shaky wi-fi connections
They've checked and apparently I'm the only user of this internet channel; all my Sky and TalkTalk-using neighbours are on a different one, so it's not due to congestion. And their speed test unexpectedly showed a current speed of 40Mbps, even though I can't seem to watch more than a couple of minutes' recorded drama without it freezing.
The supplier has recommended that I install a powerline adapter (or booster) but the standard advice warns that that device has to be on the same electrical circuit. Since the router is downstairs and I work upstairs (where it's warmest), and I know that each floor of this small house has a separate power circuit, that sounds as if no such device would help me.
If only people living in single-floor flats (or bungalows) can benefit from using this device, hasn't anyone worked out a solution for those of us living on two or more floors? What about all those family houses with teenagers online in their bedrooms as well as adults downstairs?
I'm only using a Dell laptop PC, which is usually plugged in at my desk upstairs.
Any brilliant ideas for how to fix this maddening problem would be very gratefully received....