We are aware of users having shut down issues with the Varia UT 800 smart bike light when using the device with an Edge 1000/Explorer 1000 when paired to the Varia Radar. We take this issue seriously and are working on a software update to address this problem in the very near future.
As a temporary solution, please remove the UT 800 from the light network on the Edge device and use the light as a standalone bike light until we have released a software update to address this issue.
We apologize for any inconvenience.