Determined that I have a wanky RJ-45 connector in my laptop, trying to get an ethernet connection going to the house lan.
Found out my letter to the wireless driver vendor didn't get sent yesterday, and resent it today. Got an automatic response letter about new contact procedures, that didn't make it clear whether my email would be read by humans. So, I went to the webform referenced in the response letter, and re-sent my request via the form.
Now I'm going offline on my laptop, and working on laundry until time to go to the movie.