Connection to Zwift just after the start of events

I use Zwift in my Win10 64bit desktop together with my Android companion. This setup works and during normal rides I do not have any problems. but at every big events like TdZ stages 1 and 2, few seconds after the event start tI lost the connection to Zwift. This happened in the last 3 events I did participate.
This is very disappointing, especially if you connect 20min before the start, warms you up and just after the start you see all riders passing you, while I stuck some meters after the start line.

The same problem @ Stage 1 and 2; Win10 Home 64bit, Android Zwift Companion; NGeco Powermeter, Polar H7. Losing connection to BT devices after start; would be nice to have to possibility to search and pair devices in the Companion App.

Just happened to me also. On the last stretch on stage 2 with 8.4km to go lost connection and could not get it back. Really painful to get this especially on the last legs of TDZ stage 2 . Now I am worried about doing it again, but I guess I have too.

Same problem here. I have this setup: Laptop running Zwift (Windows 10 w latest updates), Zwift Companion app running on my Android phone. Watt pedals, cadence sensors and heart rate connected via Bluetooth to Companion app. App bridges signals to PC.

I experienced Bluetooth dropouts in TDZ stages one (long and standard ride) and two. Three times right after the start. I was able to reconnect sensors by opening the in-game menu, hitting disconnect and search for each sensor.

Any idea what could cause that issue? I didn’t change other parameters (fan, other devices,…) so I think it’s not interference.