Well, AT&T finally fixed my DSL connection. Finally. And they didn't have to enter my home to do it.
The thing is, I wish they had figured that out beforehand. It seems to me that they should have been able to do so. The customer support rep said that other subscribers had been affected by this outage, so I'm surprised that they didn't make that connection.
Of course, I don't know the whole story, so I won't say that for sure.
The AT&T junction box is across the street from me. From past experience (yeah, it's happened before), I know that the repair techs sometimes have to go to this box in order to effect repairs. Well, I saw an AT&T van right by this box yesterday morning, so I suspect that they had some idea that it was a hardware problem outside of my home. I also saw a van there this morning, right after my network access started working. Go figure.