Time Warner Tuning Adapter for 4 Tuner Roamio

I've seen a few posts about issues with the 6 tuner Roamios but just had Time Warner here to install cable card in my 4 tuner Roamio and got an error stating that the tuning adapter can only user 2 tuners. The tuning adapter is MTR700 but installer wasn't sure of firmware. I am in Los Angeles and using Time Warner.



Technician or supervisor is supposed to come back but wanted to see if anyone else had this issue and knows what I should ask them for to make sure they bring the right equipment?



Thanks!