Can Airdrop to Other Macs, but they can't see my Hackintosh

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As the subject says, I can airdrop successfully from my Hackintosh to other Macs, but they can't "see" my Hackintosh. Both systems are running the same version of Mojave (10.14.5) I'm using a Broadcom BCM943602CS card. Not sure where to begin with troubleshooting, and the posts I've found about this topic are bordering on ancient.

This is a minor annoyance - I'd really like to not have to bust out a USB drive when I can just as easily transfer them over the air

Any ideas for where to start would be most welcome.

 

[P1LGRIM]

Any ideas for where to start would be most welcome.

Tried this ?

 

[remanifest]

Tried this ?

View attachment 407940

Yes - no change in behavior.

 

[remanifest]

Tried this ?

View attachment 407940

When I "Search for an Older Mac" on both computers, each becomes visible to the other.

I'd only tried it on one of them before, which just made the connection for both disappear. Interesting, but when I try to Airdrop files to my Hackintosh from the real Mac, the "accept" dialogue never appears on my Hackintosh, and the "Searching for older Macs" "Cancel" button on the sending Mac greys out. I feel like we're getting closer. Thanks again for the help @P1LGRIM!