@BarryH2 - not familiar with the device in question but would I be right in assuming that it is configured/connected to the hub using some sort of smartphone app?
If so, then I would suggest: -
- Completely factory reset the camera by holding down the white reset button on the trailing cable as explained in the manual.
- Uninstall the app from your smartphone
- Optional but recommended: factory reset the EE hub to remove any configuration changes you have attempted to try and work around the problem. You can do this by inserting something into the pinhole at the rear of the hub until the LED flashes green
- When the EE hub has restarted, navigate to the EE Hub Manager > Advanced > Wireless > Compatible WiFi
- Enable Compatible WiFi, choose a WiFi network name/password and save the changes (leave the 5GHz option unticked). The hub WiFi will probably restart so there'll be a few minutes of disruption. Some guidance here.
- Your EE hub will now be broadcasting two WiFi network networks: the main network on the label/settings card and another network with the name/password you configured earlier when setting up Compatible WiFi
- Connect your smartphone to the Compatible WiFi network instead of the main WiFi network
- Re-download/install the camera smartphone app
- Attempt to connect/onboard the camera again. When prompted to select a network to connect to, use the Compatible WiFi network and not the main WiFi network
- Cross your fingers and hope for success
- Assuming all is well, re-connect your phone to the main WiFi network (the Compatible WiFi network is not as fast/performant so you want most of your day-to-day devices on the main WiFi network)
- Check that you can still manage/access the camera via the app (if you can't, it might be that both the controlling phone and the camera need to be on the same WiFi network)
You've attempted some of what's above already by the sounds of things but I think at this stage it would help to strip everything back and start from scratch.
