Unifi Guest network not getting a DHCP address

Hi folks,

I have a two unifi Access Point setup in a small location. The are not running vlans and want to use the guest network capabilities built into the Unifi AP’s (which is handled by firewall rules I believe).

My main wifi network works fine but the guest network I setup (using guest policies) is not able to get a dhcp address or able to browse.

Any thoughts on what I may be doing wrong here?

Many thanks.

PS Unchecking - Multicast and Broadcast filtering on the GuestWifi seemed to fix the issue. But reading the tooltip didn’t make me feel confident in unchecking that.