The bad news is that, despite reassurances from AT&T that our DSL had been re-established, it was not working. Resetting the modem did nothing. Besides, when you pick up the receiver on an unfiltered phone line, you don't here the DSL static. Unfortunately, since the DSL people apparently only work 7 AM - 5 PM Central Time Weekdays, there is nothing we can do until Monday, and even then I suspect the best we can hope for is them sending someone to look into the problem maybe on Tuesday and more likely later. This is not good. However, I do have unlimited bandwidth on my smartphone, can bridge it to my computer for internet connectivity, and get surprisingly good data-transfer speed (enough to stream audio from Giants baseball games), so I should be able to manage more or less until we get the DSL restored. But it may take some doing to restore our faith in AT&T, which until now has given us very good service other than the cock-ups with U-Verse.
Unfortunately, Lisa doesn't have a connection (the smartphone only easily bridges to my work machine, not to the router and our other computers), and is very much missing being able to access ActiveWorlds, where she actively participates.
We are also grateful that the weather has cooled enough that we can sleep in the house again. However, the forecast is for warmer weather ahead, and if necessary we can again retreat to the "lifeboat" (the travel trailer) where we have air conditioning.