I upgraded the the latest stable version and started getting the same alerts bombarding my logs: kernel: protocol 0800 is buggy, dev eth4. Downgraded back to firmware 3.0.0.4.384_20216 and the messages stopped. I contacted Asus support about it, but has anyone else figured out how to stop those alerts on the stable firmware?
Test firwmarei was running was something with 102xx and it had the 0800 problem. Adviced by Asus I disabled the bonding from not GT and Synology and the message stopped flooding the syslog.
In this new release I thought to give it a try. But is not fixed. Although in a past release, the one you're running it was fixed. It looks like a reoccurring bug and hopefully they'll fix it.
What was really concerning was I found no WiFi whatsoever after 12h. And that's very far from a 802.3ad issue. I only have now 8h uptime so itsi too early to tell if it's stable.