ATT sent us a new modem, which we installed.
The internet continued to intermittently fail.
We called their customer service again. (They have possibly the worst customer service on the planet.) Customer service did something by remote. ("checked the connection," I think?)
Internet is now working. But I expect it to fail at any moment.
I'm reading a book written in 1995. This was just before the internet became universal and pervasive, and before cell phones. People are communicating by snail mail and by calling each other up on landlines. When they don't know something, they have to go to newpapers archives in the basement of a library and hunt through stacks and stacks of old issues by hand. If they can't find someone, they have to go drive around looking for them.
It's like another planet, y'all.
One I seriously don't want to live on again.