Windows 10: No internet and l cannot enter PIN number

No internet so I can’t enter PIN number

:)

 

Can't enter PIN for Headset

Bluetooth Plantronics PR BT5028. Windows V 1903. Windows recognizes the headset when I try to add it, but then puts up a window suggesting a six-digit number and asking if that number matches the headset PIN.
Plantronics has publicly posted the fact that the PIN is "0000" but....there is no way I can find to enter 0000. When Windows decides that the numbers don't match the pairing fails and another six-digit number is offered.
Has anyone encountered this before? How can I enter the known pin?

 

Can't enter PIN for Headset

I'm grateful for your replies. I obviously haven't done a good job of explaining. Here are snips of the windows involved. I have done all the steps suggested, but I can't directly enter the PIN in the larger window. That seems to be my only problem. Plantronics hasn't answered yet, but I'll hope they come through.

 

Pin Number and Enter

Here's a simple problem but which I cannot overcome but one of you folks can. When I type in my PIN number on this laptop, it automatically opens Windows.

On another laptop, when I type in the PIN number, I have to hit the enter button for it to open Windows. Why is that and how do I fix that?