u/HeavyElectricity — reddlx

Can anyone else confirm this is the same for them?

It only seems to have started after a recent firmware upgrade to 1.4.1 on the ER707-M2, and unfortunately attempting to downgrade the firmware returns an error.

I have a dual-stack IPv4 and IPv6 LAN and WAN (no NAT64), but the gateway DNS is generating synthetic DNS64 AAAA records for IPv4 hosts, causing connection latency and timeouts:

user@client:~$ dig @10.1.0.1 ipv4only.arpa AAAA +short  # Omada Gateway DNS
64:ff9b::c000:aa
64:ff9b::c000:ab

user@client:~$ dig @1.1.1.1 ipv4only.arpa AAAA +short  # Cloudflare

user@client:~$