Thank you for your patience.
We’ve identified the likely cause and are validating it now, and we’re also planning a firmware update to fully resolve the issue.
As a temporary workaround, please SSH into the router and run:
ethtool -K br-lan tso off
ethtool -K eth0 tso off
ethtool -K eth1 tso off
ethtool -K wlan0 tso off
ethtool -K wlan1 tso off
If the issue is resolved, you can make this persistent by adding the same commands to /etc/rc.local before exit 0, then rebooting the router to confirm the setting is applied after startup.
