ANT Forum

Looking for assistance on connection issues over the last two days.
Set up - Tacx Flux S, PC Windows 10, Ant +, with extension lead and Garmin HR Monitor (Ant +). All devices, up to date.
Using Ant + connection last 4 weeks after changing from bluetooth, no problems till yesterday when during a race lost connection after 30 mins. This morning had to go back to bluetooth and therefore had no HR, could not get Ant + connection.
Have checked HR monitor and devices with Zwift on Android and also with Tacx app and no issues. All work perfectly.
Seems to be a PC issue or the Ant + dongle, which is a garmin usb2. As I said no issue till yesterday. Is there any way to check if dongle broken?
Any suggestions would be great      

Try using SimulANT+ from the downloads section of the site to see if the USB stick can be found. "Heart Rate Display" and "Fitness Equipment Display" simulator types can be used to test HR monitor or trainer connection.

Note: you will need to close any software that may also be using the USB stick. Only one program can use the USB stick at a time. If you recently installed new software, or started running software in the background that you were not previously, this may be what is causing your issue. For example you may need to not have Garmin Express running in the background for Zwift to be able to access the USB stick.