You may not want to hear this... My oldest friend in northern VA had DSL through a CLEC, Cavalier Telephone, for about 20 years. The phone line into his house developed a leak (my guess) and his Internet kept going out until the rain stopped and the water dried out again. The wires themselves were AT&T, and they literally refused to replace that bad cable. They wanted to install FIOS.

My friend went with Cox instead. Their cable had gone bad as well, but they immediately trenched his back yard and replaced it.