-
If you're using trainerroad and a smart trainer it should set it automatically (check this is the case with your trainer, maybe the trainer itself needs to be set manually to ERG?).
You shouldn't be using ERG mode for normal FTP tests but for Ramp Tests, TR will enable it.
https://support.trainerroad.com/hc/en-us/articles/201869764-Erg-Mode-Explained
https://www.smartbiketrainers.com/trainerroad-makes-ftp-testing-suck-less-with-a-new-ramp-test-5266
Am I best using a different setting from ERG??