DMC, OnePlus 8 Pro not discoverable

Dell Mobile Connect is installed on my XPS 8940 and I can get to the point where the Q-code wants my phone to scan to continue. The challenge is that the app will not get to that point on my android phone. Phone is a OnePlus 8 Pro and the software stops at the point where I have the Dell Mobile Connect screen up and the screen shows "Please allow Dell Mobile Connect to make your device discoverable by other bluetooth devices". I tap on the "OK" button but no joy, nothing happens.

Cannot find any support to help me with this issue. I have uninstalled and reinstalled several times on my phone  but always get stuck at the same point, which is the very beginning.