Airdrop Help iPhone to Mac

Hello,

I’m having trouble air dropping photos from my iPhone to Mac work computer. I’ve been doing it fine since August with no issues and it suddenly has stopped working. I have tried turning on and off WiFi and Bluetooth, resetting both devices. I also turned off personal hotspots. What’s interesting is that I have a second Mac at home and it allows me to airdrop to that one. The tech person at my work was able to airdrop to my work computer from his phone, but for some reason my phone will not list it as an option when I hit airdrop and am holding my phone next to it.

Does anyone have any ideas?