I've been monitoring the connection since this morning. S/N ratio bounces between 0 to around 12. Attenuation is a steady 54-55. Lost sync again a few minutes ago. Came back up at 11.40 S/N ratio and 55 attenuation. Elite worked fine for years but ever since going to Pro the S/N is unstable. I will continue to monitor and unless someone has any other suggestions I guess I'll have to call AT&T tomorrow.