It's my understanding that it becomes necessary if you have gigabit service and/or care about gigabit LAN without taking a 10% throughput hit as you near those speeds, fwiw
Successfully got a TM1900 running as a 68U on 380.61 (in AP mode with a 66U routing in my study), at least for a few days.
For the last few days the router acts only like a switch. Put simply, it doesn't look like it gets out of the CFE loader and into linux.
I can't reset NVRAM with any...