My RB3011 got itself twisted into knots (RoS 6.49 stable) and started routing ports back onto themselves and other weirdness (eg when eth1 was connected to the ONT then I couldn't connect to the 'tik from my PC)
Anyhow, didn't have the time to do troubleshooting so just upgraded to RoS 7.7 hoping it would solve the issue - well whaddaya know, it did.
Under RoS 6 I had a nifty 'sniffer' that used the now deprecated 'accounting' function to provide a real-time view graphical dashboard of the internet traffic being of the various devices on the network - this meant that I could quickly identify any culprits potentially saturating the line.
Any of y'all got something similar going on RoS 7?