DHCP over WiFi with Bridge to AP LAN

Question

Hi, I have searched but was not able to locate the answer, so hopefully the community can assist. 
 I am configuring a new multi-site configuration. I have a XG-115 at the home base and a XG-85w at the remote site. Both sites have a Public and Private WiFi. The Private is Bridged to the LAN and the Public has a separate IP scope. 
 The issue I am having is the Remote (XG-85w) site I cannot get a DHCP address when connected to the Private WiFi. Wired, it parses out addresses. But the wired connections all receive self-assigned addresses. The Home (XG-115) site has the same exact configuration (Different names and different sub-nets) and has no issues whatsoever. 
 I am stumped. I Wiped and rebuilt the Remote from scratch just to make sure I hadn't fat-fingered something. But I am not having any luck.

AaronDavies · Answer

Hi, I have come across this a couple of times with SG firewalls and have found a workaround: 
 Enable DHCP replay for the internal network and point it at the internal DHCP server. 
 Having a look at the bridging settings however there is a tickbox in 'advanced bridge' to 'Allow ARP broadcasts' that is off by default. 
 Have not had the opportunity to test but could be the culprit, in the mean time my workaround did it for me!