06-26-2019 04:32 PM
Sorry to hear about the trouble. Try changing the Wi-Fi band on your HERO7 Black camera to 2.4GHz and see if that will make any difference.
In addition, there are some troubleshooting suggestions here that will help: Troubleshooting GoPro App Connectivity Issues
06-27-2019 09:28 AM
If you haven't yet, see if your One Plus 6 has the Smart Network Switch or Intelligent Wi-Fi feature.
Smart Wi-Fi / Wi-Fi+
Similar to Network Rating Provider, some Smart Wi-Fi implementations categorize the Wi-Fi networks broadcast by your GoPro camera as having poor signal. Because of this, certain Smart Wi-Fi features need to be disabled. Follow these instructions to do so:
- Disable “Smart Network Switch” or “Auto Network Switch” from the phone’s Wi-Fi settings.
- Go to: Wi-Fi Settings > Advanced > Disable “Smart Network Switch” or “Auto Network Switch.”
Let us know how it works out.