I have been testing 2miners with lolminer then switched to nsfminer (which I find better IMHO).
I tried to switch to flexpool or crazypool but no way. Nsfminer is stuck on 2Miners.
I found 2 config files ethminer.conf on /hive/miners… and /run/hive/… Tried a manual update on the rig but as I start or restart the miner, the files are replaced. I even deleted 2miners flight sheet and tried without.
Is it something stuck on hive database ? Because when I switched to Gminer, I was able to get to crazypool. Then I switched to the flight sheet with NSFMiner+Crazypool but I got to 2Miners again…
In case it may help others. I found out I tuned ethminer parameters to use BTC for 2Miners. So custom tuning was always applied. You will need to remove it before.