Hi, Charlie Walker SL-UK
Welcome to Microsoft Community.
We understand that you have encountered the problem of ‘Couldn't find the device’ with Logitech RALLY BAR and TAP IP. RALLY BAR and TAP IP seem to be Logitech products, we are not sure what kind of error you are referring to when you say ‘Couldn't find the device’, could you please provide us with a screenshot or a picture of the prompt and the error? Could you please provide a screenshot or image of the message and error so that we can further understand whether the error is in Windows or Logitech devices.Also, could you please provide us with the version number of your system, you can press windows+R, type winver and send us a screenshot of the version number.Any information you provide will help us to further understand your problem situation, so that we can further provide you with guidelines or referable solutions, thank you for your understanding and support!
Best Regards
Nicholas.Z - MSFT | Microsoft Community Support Specialist