Yes - I’d be surprised if you issue was related to your internet dropping, since you can effectively use TR completely offline once you’re logged in. Sounds more like you lost Ant+/Bluetooth connectivity for a while.
Just thinking, there has been one change… I was using new Apple Air Pods on both occasions which I’ve never used before…they were connected to my phone whilst my pedals and HR monitor were connected to PC via Ant+ dongle.