Good day, I have the Cable Device working with the Cable Int app.
I am unable to get Zwift to recognize the bluetooth its putting out and it does not show up on power, speed/cadence or resistance.
Ive tried all the combinations of settings and none has proved fruitful. Also there are old examples of, instead of resistance, a controllable device ICON. That I have not seen either.
Has anyone got the magic sauce for the outputs of the tacx flow, to take its ant+ outputs to BLE such that Zwift can use them.
We are attempting this desperate approach because the BLE from the tacx has become unstable.
Step 1: Is scanning the outputs and they are basically pwr, speed & cadence, and FEC trainer device.
Step2: Is multiple combinations and permutations to provide speed, power, cadence to Zwift. This
Note, that there is no direct function or parameter for resistance. The only I can determine is that using FEC device is the way to tell Zwift one has a controllable device.
Step3: is basically looking at the outputs the cable is putting on ble.
Ever since we upgraded our IPAD air3s to the latest IOS, we are losing sync like mad in the middle of workouts and races. It has gotten to the point that I tried to connect a CABLE and cable in APP to one of the tacx flow trainers to create an ant+ to bluetooth connection with zwift vice the tacxflow bluetooth direct connection to zwift. Problem there is, I cannot get “controllables” icon to show up at all, which seems to be needed as there is no direct resistance setup in ant+ output. ( FEC and many combinations didn;t work either).
In summary, we think there is some issue with 26.3 ←→Zwift←—→Trainer.
Is it just us???
Cheers
Alex
Its getting to the point that we may have to cancel our zwift subscription and go back to pedalling to music cadence 
I don’t know anything about the CABLE device or how to troubleshoot that, but have you already tested the trainer with the Tacx app on your iPad (after you force-quit Zwift) or with either Zwift or the Tacx app on some other device? Also the “Controllable” tile on the pairing screen was renamed and is now called “Resistance”.
Good news, the problem was the combination chosen upon the initial scan. One should only choose one entry and thats the trainer itself (Fec). In the second menu, one chooses the trainer (fec), power (feC) CPS cycling speed (fec). Then remember to turn the APP off.
I am now logged in properly on zwift.
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Hi Paul, Thanks for the reply.
I managed to get Cable working. Will try a workout session to see the stability over an hour and will make sure there is a fan on the flywheel to rule out any temp issues.
Since these problems really crept up after the ios 26.3 update its the only explanation I can think of.
For what it’s worth,I have a Tacx Neo 2 trainer (so probably somewhat similar firmware) that I run on an iPad running 26.3, and I have no issues. So, to me, it sounds like it might be something off in your setup. You might try deleting and reinstalling Zwift, to see if that resets anything. And also be sure to force-quit the Zwift app after every use, and not just exit and swipe into the background.
Hi Nigel, appreciate the feedback. Its odd because we have two tacx flow trainers that we have been using successfully for two months now and this week, dropouts left right an centre. The only thing I can think of that has changed as been the iPAD IOS update.
I did do a training session with mywhoosh, and it crapped out after 3/4 of the workout so not sure yet what the issue is. I will also be trying mywhoosh again on my bike using the CABLE ant+ to BLE adapter and on the other bike mwhoosh with straight bluetooth from the trainer.
In addition I just downloaded rouvvy and will attempt to use that on both bikes to see what if anything can be determined.
Frustrating as you can imagine!! My own, and wearing my significant others anger too.
There are three factors in the connection: the trainer, the device running the game (including its software and hardware), and whatever is in the air around you since it’s a wireless connection. If you have two trainers and they both start having problems at the same time, that makes it less likely that it’s the trainer. But the other two factors are still relevant.
I agree with the logic, but there has nothing new introduced into the room, or the house ref potential interfering sources. It has been stable for the past two months until this past week.
You’re aware of one thing that changed, but about everything else, you cannot be certain, so the cause remains unknown. There don’t seem to be general complaints about iPadOS 26.3. If you’re happy with your new working setup, then perhaps it’s not worth digging into it further, but if it’s a nuisance then it might be worth the effort. Some other steps you could take would be testing the trainers using the Tacx app, or picking some other device to run Zwift to see if it has similar problems.
Yup, will keep trying. thanks!
This might be the culprit…………… as I suspected……….as being the only thing changed……
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No luck for any stable rides anymore.
We even tried roouvy today on my bike with ipad. Also dropped out.
We tried a PC to eliminate ipad and zwift, but zwift dropped out multiple times again, meaning the connectivity with blue tooth.
We were careful remove any other devices in the local area with bluetooth including iphones.
I am not convinced of anything at the moment other to say that the trainers themselves are perhaps flaky???
The other possibility to rule out is diverted pairing, which means having two apps paired to the trainer at the same time and fighting over control of it. On mobile devices or Apple TV it’s pretty easy to accidentally do that. Zwift support can tell you if they are seeing a login on more than one device without a corresponding logout (in the Zwift app, but not in other apps). There’s no way for me to know for sure if that happened.
Thats why we, of late, are only single device testing. ONE trainer, one receiving device, no other bluetooth devices ON in the area. On the roovuy test, the ipad was turned off, turned on, then only roouvy was started, and it dropped connectivity a number of times with the trainer.
If you test with the Tacx app, and test with multiple devices running the Tacx app, and it’s never any good, and Garmin support doesn’t have any ideas, then I guess it’s time to get a nice new trainer.
I guess one last test could be take the trainer to a friend’s house, away from the wireless environment in your home, use their phone/tablet/computer to run Zwift, see if that does anything different. If it works in your friend’s home, leave it there and get a nice new trainer for yourself.
Agreed, but real pain, I am getting two new fly wheels, for the tacx flow sent as well, but I doubt that will do the job as the ones I have were replaced within the last year already.
If they’re under warranty and they don’t work, pressure Garmin support. If trainers don’t work in your home then you need to keep digging into interference problems or pair via WiFi, which could be possible with a different trainer.
Its a discontinued model, long past warranty but they are kind enough to send us flywheel replacements, will give it a go………….. What I should do is buy two wahoo kicker2s, ship them to Maine and pick them up, except for stupid tariffs, I could end up paying 50% of the price at the border and then I am screwed……..
