I have AT&T 100 fiber connected with AT&T modem/router, direct TV and 2nd generation apple TV. speeds go down to 1.3 Mbps and slower. this makes netflix, hulu stop streaming and reboot. I got the fiber b/c of the prior AT&T connection did the same thing. I also have an old panasonic plasma tv. All worked fine without rebooting until some time march/april 2018 without fiber. Is comcast any better. Any solutions without upgrading. mike.