Since CH did not work for me (at least 184.108.40.206) anyways I got to searching. Apparently if you have DLC the trainer is seperate - at least all the ones I saw for 220.127.116.11. Having given up trying every free trainer out there, I downgraded to 18.104.22.168 (and tested trainers to be all working).
I then upgraded to DLC and noted those trainers STOPPED working. Then got their special DLC counterparts and they started working again. I noted with DLC that 22.214.171.124 of CH works...but I'm not sure the same can be said of 126.96.36.199. It was flawless execution from 188.8.131.52 but in .0.2 I see a crash at sector 09ae according to the details....anyone here using DLC and can advise?