Merlin AiMesh 2.4Ghz DHCP Failures

[Brockp]

I am running an RT-AX88U running 384.13_0 as AIMesh Router and an RT-AC88U running stock 3.0.0.4.384_45717-gadd52a8 as AIMesh node. We are using 5Ghz wireless backhaul.

Most things work but found a case where clients who are associating with the node and are using 2.4Ghz cannot get DHCP leases. If you turn off the node they connect to the router and all is well (other than poor signal causing video to drop). Any 5Ghz clients connecting to the Node have no issues.

Sep 5 20:44:43 dnsmasq-dhcp[5615]: DHCPDISCOVER(br0) f4:f5:d8:f7:dd:60
Sep 5 20:44:43 dnsmasq-dhcp[5615]: DHCPOFFER(br0) 192.168.84.36 f4:f5:d8:f7:dd:60
Sep 5 20:44:46 dnsmasq-dhcp[5615]: DHCPDISCOVER(br0) f4:f5:d8:f7:dd:60
Sep 5 20:44:46 dnsmasq-dhcp[5615]: DHCPOFFER(br0) 192.168.84.36 f4:f5:d8:f7:dd:60
Sep 5 20:44:53 dnsmasq-dhcp[5615]: DHCPDISCOVER(br0) f4:f5:d8:f7:dd:60
Sep 5 20:44:53 dnsmasq-dhcp[5615]: DHCPOFFER(br0) 192.168.84.36 f4:f5:d8:f7:dd:60

I found a few posts from 2017/2018 about a broadcast issue across bridges in Asus routers but no resolution/bug fix, and hard to think that after all this time they would ship AiMesh with this. So Curious if this is something that is Merlin specific, or configuration specific.

Thanks

 

[GhsHun]

Same issue too. Router: RT-AC68U, fw: 384.13. Node: RP-AC55 fw: 3.0.0.4.384. AiMesh connection. All works fine for a few hours, but after that, DHCP address leases not working over the repeater. If I use fix IP, all works fine. The DHCP server on the router received the request and send the response, but client won’t received the broadcast answere. I didn’t find any solution. Anybody else?