I recently got a hEX S and a Ubitquiti UniFi AC Lite. To set this up I initially used Quick Set in Winbox. I then added a guest network. On the AP, I tagged the guest SSID with vlan 10, and put a separate bridge on the router. Today, I was playing with the firewall and made changes to account for all packets.
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That was when I realized my single Win10 system seems to be generating loads of UDP broadcasts. 20 or so per second. Thinking it was the firewall changes, and went back to the original firewall settings. But when I look at the packet sniffer, they're still there. So I suspect something is wrong with my guest network setup. Any suggestions?

See: https://wiki.mikrotik.com/wiki/Manual:I ... _and_ports

UDP/20561 is used for MAC winbox connection.

It uses broadcasts to be able to connect to RB on L2 (no IP address required).

By connecting to IP address instead you will eliminate these broadcasts.

Perfect! Bedankt!