Fedora and LocalSend (and Syncthing)

Recently installed Fedora 44, and although I have to use a wifi dongle (using a Mac Mini with no open source wifi drivers), I have no trouble connecting to the internet at large. I am having issues, however, with anything that uses my local network to connect, specifically LocalSend and Syncthing. The devices (an Android phone, Fedora machine, and a MacBook running MacOS) can see each other, but it seems that no file transfers are going through, at least ones that involve the Fedora machine. Anyone else experience this? Any advice? Thanks.