# Zwift hub one low watts **URL:** \ **Category:** Bugs and Support\ **Created:** [May 25, 2025, 11:49pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347 "2025-05-25T23:49:54Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![\_Dennis\_14](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/_dennis_14/32/52281_2.png) [@\_Dennis\_14](https://forums.zwift.com/u/_Dennis_14)\ **Post date:** [May 25, 2025, 11:49pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/1 "2025-05-25T23:49:54Z")
My Zwift hub one trainer is reporting such low watts, it was working just fine before the update recently but now it’s just reporting 40-50 watts, and if I sprint as hard as I can I only report 120-130 watts. Does anyone know how to fix this? There’s no calibration anymore, it’s up to date, I tried to do a spin down on a downhill but that didn’t help either. ---
**Author:** ![shooj](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/shooj/32/91371_2.png) [@shooj](https://forums.zwift.com/u/shooj)\ **Post date:** [May 27, 2025, 11:50pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/2 "2025-05-27T23:50:39Z")
Hi @_Dennis_14 Shuji at Zwift HQ here. I looked at your server logs and it appears you normally Zwift using a PC, is that so? Recently, it looks like you’re also logged in at the same time from an iPhone 15, and I’m guessing it’s to troubleshoot. Don’t do that. Simultaneous logins from two devices can have lots of weird symptoms including this one. If the PC is your main Zwift computer, we recommend uninstalling the main Zwift app from the iPhone to eliminate the risk of concurrent logins. Some other common factors that contribute to low resistance seem to be in order: the firmware for your Zwift Hub and Zwift Click are both up to date, and you’re pairing (natively) to the PC over Bluetooth. Are you in Gear 24 and still you don’t have enough resistance? You may want to look at the Settings menu of the game app and see how your shift style and virtual gear range are set up. Here’s [an article to guide you through that](https://support.zwift.com/shift-style-and-gear-range-rksYezzIC). Hope that helps! ---
**Author:** ![Kerstin\_K\_C2rower](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/kerstin_k_c2rower/32/461861_2.png) [@Kerstin\_K\_C2rower](https://forums.zwift.com/u/Kerstin_K_C2rower)\ **Post date:** [May 28, 2025, 7:23am UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/3 "2025-05-28T07:23:52Z")
Hi Shuji, I understand that he is having the exact opposite problem - no matter how hard he sprints, he cannot generate significant watts. A friend of mine encountered exactly the same problem two days ago. First he had some brief signal losses from the Zwift Hub and decided to restart Zwift. After that the Hub reported extremely low watts, exactly as Dennis described. He finally solved it by power cycling the entire equipment including the Hub and could finish another ride without further problems. AppleTV 4k, Zwift Hub One, all on latest firmware and updates. ---
**Author:** ![\_Dennis\_14](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/_dennis_14/32/52281_2.png) [@\_Dennis\_14](https://forums.zwift.com/u/_Dennis_14)\ **Post date:** [May 28, 2025, 1:33pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/4 "2025-05-28T13:33:09Z")
There’s some unfortunate news to that, so yes I was able to get the correct wattage however it was only in ERG mode for one interval. When I connected the zwift click little controller it still went back to the same problem. ---
**Author:** ![shooj](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/shooj/32/91371_2.png) [@shooj](https://forums.zwift.com/u/shooj)\ **Post date:** [May 29, 2025, 8:24pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/5 "2025-05-29T20:24:19Z")
> [@Kerstin\_K\_C2rower](#): > > He finally solved it by power cycling the entire equipment including the Hub and could finish another ride without further problems. “Turn everything off and turn it back on again” works wonders for various reasons, but yes. definitely do this early in your troubleshooting steps to save yourself a lot of aggravation. ---
**Author:** ![Shane\_Lee\_S.Speed\_US](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/shane_lee_s.speed_us/32/528962_2.png) [@Shane\_Lee\_S.Speed\_US](https://forums.zwift.com/u/Shane_Lee_S.Speed_US)\ **Post date:** [July 27, 2025, 10:25pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/6 "2025-07-27T22:25:09Z")
I’m having the same problem with low watts compared to my Kickr Core. I have tried to resolve this through all the steps discussed and also emailed Zwift with files. My software is up to date but nothing is working. Reading at least 50watts low. I’m ready to throw the Zwift Hub in the trash. ---
**Author:** ![Ethan\_Pratten](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/ethan_pratten/32/518272_2.png) [@Ethan\_Pratten](https://forums.zwift.com/u/Ethan_Pratten)\ **Post date:** [January 13, 2026, 9:39pm UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/7 "2026-01-13T21:39:40Z")
I’m experiencing the exact problems as Dennis. Only obtain the correct wattage on ERG mode whilst doing intervals, even so at the start of my most recent it was near maximum effort for me to be able to turn 100W before i troubleshot it by turning on/off ERG mode until it fixed itself for that session. Straight after finishing the intervals I attempted a normal ride and I was unable to go anything over 80ish watts with very low resistance and spinning like crazy. ---
**Author:** ![Mo\_M](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/mo_m/32/518272_2.png) [@Mo\_M](https://forums.zwift.com/u/Mo_M)\ **Post date:** [July 6, 2026, 10:05am UTC](https://forums.zwift.com/t/zwift-hub-one-low-watts/653347/8 "2026-07-06T10:05:47Z")
I’ve updated my zwift hub one with zwift cog and having the same issue wasn’t like this pre update. Need to go up to gear 18 to feel same resistance as gear 8. Running 5.2.2.