Since the Feb Zwift update I’ve been experiencing random sensor dropouts on my kickr core, the most recent being yesterday right before the end of a race. I seem to lose everything and have to unplug my trainer and re-connect to get zwift to pick it back up. I’m also using a Wahoo Tickr heart rate monitor and this drops too! - All connected via bluetooth using IOS companion to a MacBook Pro.
I have a team mate thats running the same setup but using Ant+ and she is experiencing the same!
Anyone else experiencing this and found a fix or fed back to zwift and had a reply?
I am the team mate with similar problems. Wahoo Kickr Core paired via Ant+ to MacBook Pro. No problems for 2 years and starting 7 February (update day) lots of race ruining power drops. All troubleshooting gone through.
Looking at the screenshot I think you need to select the Wahoo FEC option for ‘power source’ and ‘Controllable’ rather than ‘Kickr Core C389 64’ (this is an old protocol). It may have been set to this before the update and has switched after.
I have noticed 9 seconds power drop. Wahoo Core connected as Power source and Controllable, Inpeak Powercrank connected as Cadence source. Zwift latest version on iPad. Wahoo latest firmware *.12
Issue occured only once.
Yes sorry the connection is through bluetooth. I have the Kickr Core connected to a windows 10 laptop with and Ant+ dongle and I haven’t experienced any dropouts at all. Ant+ connected through FEC is a stable connection and always the best option if it is compatible with the users equipment.
I have a old Garmin one that came with a running watch from years back. It is the full stick version rather than the modern sleeker one. I have heard that none familiar brands work just as well though although cannot verify that is the case. The following might be helpful :Recommended ANT+ Sticks (Dongles) for Zwift | Zwift Insider
In Cat’s case - there was a session on Feb 23 where sensors connected, and a 2.5 hour ride on Tempus Fugit was completed. In Danno’s case - your last successful connection was also Feb 23 with a logout of 9:10 am UTC. Were both of you experiencing power drops on these rides?
Would both of you upload the log files from these specific rides to zwiftalier and see if there’s anomalies?
@Danno_Race3R
Thanks for uploading that. That BLE chart don’t reveal anything out of the ordinary.
If you look at that ride in Zwift Companion’s Activities - there should be a timeline view where you can see the chart for power, cadence, and HR data. Do you see any sharp valleys where there’s zero data coming from the sensor? If you know for sure it’s not just times when you stopped pedalling completely, I’m curious to know which sensors dropped signal? All of them, or just power?
The chart you see on ZC corresponds to data in your FIT file for that session. Depending on what you see, I might ask you to email us that FIT file as the next step.
Thanks for coming back to me, so you can see on the graph (attached) that I lose everything right at the end of the ride, I can confirm it was a full drop of all sensors.
Thanks for sending along both of those. I’d like to ask you to send the FIT file for this Feb 23 event, please. Here’s how to locate the FIT file.
Email that as an attachment to support@zwift.com. In the body of your email, please reference this forum thread URL, and ask for Shuji.
You haven’t affirmatively told us yet, but when’s the last time you updated the firmware on your Kickr Core and Tickr HR monitor? Let’s eliminate this as a possibility, shall we?
I’ve been having problems too; lot’s of dropouts and haven’t been able to solve the problem. I also seem to be showing lower power readings than expected for the gear and cadence.
I contacted Wahoo and they got me to do a factory reset and when I rode today the “feel” was ok, i.e. when I rode steady it felt steady but the power readings were lower than usual for the same effort/gear/cadence.
Emailing that over to you now to review, all firmware is up to date on the kit i’m running, I do a monthly check on this to make sure I’m on the latest software.
This morning I switched to Ant+instead of bluetooth for the first time, have to say the readings in zwiftalizer show everything was running really smooth so this may be the way forward from now on!
Good morning @Danno_Race3R, I see your email from four days ago, but I can’t find one from last night with a FIT file attached. Did you send from a different email? If so - please private messsage me what that is? Thanks.
