Hi Zwift Support Team
I encountered a problem: Starting this week, when I user my PC,The ERG mode does not take effect in training and I cannot strat the calibrate spindown (keeps showing “connecting device“)
However the power signal is working and I can use ERG mode on my iphone zwift app.
Tried restarting my PC and trainer and re-installing the app. None working.
having the Zwift game app running on multiple devices can cause lots of problems. You maybe never ended the ride correctly on the iPhone and just swiped the app to the background (this doesn’t close the program).
Best practice would be to remove the app from the phone, restart everything, and try again with the PC. I would bet your trainer isn’t paired correctly on the PC so ERG won’t work.
Thanks for the reply Mike.
I have disabled all my connections on phone. The connection (power, resistance) with PC is ok but it simply doesnot work in ERG and spindown
don’t use Zwift for the spindown, use the Garmin/Tacx app.
The pairing screen looks good here, so I would expect that ERG works. Can you post a screen shot of what you are experiencing when doing a workout in Zwift? Preferably in the middle of a block so we can see the graph of your power at the bottom of the screen.
The watts does not change with the program. The change of my power at the bottom of the screen is when Is me shifting the rear derailleur.
I’m out of recommendations, maybe @Paul_Southworth has some ideas? If not, then time to email support@zwift.com and see if they can help.
Since today find out that ERG mode is no longer working for me. Trainer is Magene T300, windows 10 + bluetooth connection. Zwift app shows that im in the ERG mode but actually it doesnt maintain power…
Resistance is BORKED. ERG mode doesn’t work. Many people complaining. Even on today’s group workout. My mate called me. Like physically called me on my cell phone. He never calls me. Zwift pls fix. Thank you. 
Hi, I’ve had the same issue with the Saris H3+.
It worked yesterday, but not today. I’ve tried to recalibrate my trainer and update the firmware, but nothing worked.
Some more details of your setup would be helpful.
Same issue here - ERG not working during a workout today. I also was not able to change resistance by turning ERG off and adjusting the Resistance Level via the Companion App. Power and cadence reporting seemed accurate. My Wahoo Kickr trainer and other sensors are paired via Bluetooth.
ERG worked fine during Sunday’s workout. I am using the current Zwift MacOS version (1.104) on an Macbook pro M4pro connected via AirPlay to an AppleTV 4k gen 2 & 55” Samsung 4k TV.
The interesting part is that ERG worked fine when I paused and switched my Kickr to pair via Ant+ rather than Bluetooth. I would wonder whether this is an issue with my Kickr if it also wasn’t reporting Power/Cadence to Zwift and others weren’t reporting similar issues today.
Shouldn’t really matter. People are complaining left, right and center. Take a look at ZwiftInsider comments under the new update. I’ve got a KICKR V4 (via BT) and my mate’s got a Tacx Flux. Pretty sure there are many others with different trainers too as evidenced by today’s group workout I was a part of.
I’ve got the same issue, MacOS, Kickr v5, latest Zwift release. ERG mode is completely broken, as is spindown via Zwift. On the mobile app I was able to successfully spin down and ERG behaved as expected. At least the mobile app works for now, but really hoping this gets addressed quickly…
Applied the 1.104 update. Attempted to do a workout and discovered that ERG mode was not available. Companion in workout mode does not show the ERG mode bar anymore (mid screen left) and a “Pause” button now is next to where the ERGd control was previously. Game paired normally with my Stages SB20 (left pedal power meter). Bike zero reset before connecting. ERG button not displayed in action menu.
Sorry, forgot to add game is running on Windows 11. Computer, game and router were restared.
I too am experiencing this. Verified on mac and apptTV platforms. Kickr v4 trainer. Worked before this last update. Able to control power on garmin.
Exactly. PC Windows no ERG mode, while ERG works good on mobile
I think you dont have the erg available, since zwift wont let you assign it as a controllable system. I cant even see my SB20 bike since the update to 1.104 I think there is a zwift code issue. I can occasionally get the pedals to show up with several tries and lots of patience. Them I can ride with the power but get no adjustments for climbs or descents. May as well set trainer difficulty to zero, but I cant even get to that anymore.
Update: Today even my mobile app lost ERG
