I know several users have got the Go Plus device now, so I am wondering if anyone else is seeing the issue.
The Plus is designed to disconnect every hour and so on the hour it will vibrate and pulse red; looking at the phone it looks like it is still connected (icon in the game is still lit), but if you ignore the red pulse continues. At this point I manually disconnect using one of the three methods (Android notification area, clicking on the in game icon or closing the app).
When I go to reconnect, this is where the issue starts - it looks like it is connecting, then the app says it is closing (but doesn't) and then the Plus device will never connect. At this point I have to remove the connection to the Plus in the game, close the game, unpair the device with the phone, turn off Bluetooth, reboot the phone, turn on bluetooth and reconnect the Plus to the game. This takes considerable time and effort.
What's worse is when this happens without the hour being up, in this instance it just stops working without any notification
The game again shows that the Plus is connected but yet will not detect the PokeStops I have around at work.
This trouble started with the game update for Halloween, and now I can't roll back
Android 7.0; Nexus 5X