So I have the R1 connected to an Arris SB8200 cable modem.
I have been having issues with T3 and T4 timeouts causing the modem to reboot.
I thought this was an issue with Comcast.
But it appears to be the same problem I had before with the SB6183 and its Energy Efficient Ethernet.
Any heavy internet usage like downloading or streaming causes T3 and T4 timeouts leading to the modem rebooting.
Does anyone using the SB8200 have similar issues???