Interesting thread. I landed on this because I ran into a similar problem with my hap ax^3 in my home network.
I made a simple change to the queue tree for one interface-- changed it from "only-hardware-queue" to fqcodel and before long, most DHCP clients could no longer renew their leases.
As far as packet captures taken on the mikrotik, they showed the dhcp discover and offer happening, but the clients didn't appear to get the offers. Multiple reboots didn't help. In the end, only a restore of configuration from backup helped. IPv6 continued to work, and any statically configured clients also worked fine on ipv4. I wonder if the packet capture happens before the frame actually leaves the interface and if I was seeing a "false" picture.
I made a simple change to the queue tree for one interface-- changed it from "only-hardware-queue" to fqcodel and before long, most DHCP clients could no longer renew their leases.
As far as packet captures taken on the mikrotik, they showed the dhcp discover and offer happening, but the clients didn't appear to get the offers. Multiple reboots didn't help. In the end, only a restore of configuration from backup helped. IPv6 continued to work, and any statically configured clients also worked fine on ipv4. I wonder if the packet capture happens before the frame actually leaves the interface and if I was seeing a "false" picture.
Statistics: Posted by SpiritedPear — Mon Mar 03, 2025 3:57 pm