I started using Zwift today but have experienced issues with my speed.
I’m using Zwift on a Windows 10 laptop. I have a Tacx Vortex trainer and have a speed sensor attached to the hub of my rear wheel. I also have an ANT+ adaptor which is connected to my laptop via USB.
I can load Zwift just fine and on the pairing screen, it shows my trainer is detected. However, when trying to ride, I start pedalling, my speed increases to around 5-10 kph and then drops to 0 whilst I’m still accelerating. I stop pedalling and as the trainer is slowing down, it starts to pickup the speed again - usually 3-5 kph.
I tried the calibration feature on Zwift which asked me to accelerate to 37 kph but I’m pedalling moderately and it doesn’t ever get over 3 kph - even though I must be doing well over 30.
Any help is appreciated!