I would start by disconnecting all other devices and start by connecting them one at a time. Verify you have the correct com port in the ASCOM settings for each driver and then attempt to connect it. Also make sure you’re not running any other applications that are connected to that device (through ASCOM or natively).
Also you can attach a log if that fails and we can take a look. Info on where to find logs and good info to include can be found here:
Thanks,
Jared