Zwift not Adjusting Resistance (1/14/2019)

It would be more helpful if everyone included more details such as trainer type, computer type, phone type, ANT+ or Bluetooth, etc…

For those one Android, remember it is beta and you should probably look here and post here: Zwift Android Beta

For those using Bluetooth on Windows, that too is beta. I do not use Windows and do not know the current progress of the beta, but per note warnings in the initial release note:

Windows bluetooth early access. On up-to-date Windows 10 devices that have bluetooth 4 support, we now natively support reading power data, speed, cadence, and heart rate over bluetooth in this release. No control of trainers is supported yet (you will still need to use ANT+ or Bluetooth via Zwift Companion for that). DO NOT USE for important races or rides, it’s there for testing and we’d love feedback here 185 in our forums about your experience if you decide to give it a try.

Perhaps look and comment here:

@Nicholas_Schneider_w Make sure you are force quitting the Zwift app after each riding session. Also make sure you are force quitting the Zwift Companion app after each riding session. This will eliminate many problems w/Zwift on the Apple TV and/or iOS devices.