One of these devices was a new MX67 that operated perfectly fine for about 22 hours, then at 20:00 yesterday started going offline randomly (100 + times in 12 hours). Reverted back to 18.211.2 and the issue went away. Device has something plugged into port 2 for the LAN side, no way to go on-site and unplug it to check if converting it to a WAN port and back to LAN port would resolve that issue or not so just rolled back firmware. Issue is resolved on it. ... View more

Yes, all MX67. Only effected devices with something plugged into Port 2 from what I can tell. I've found this to be true on 9 devices so far. Possibly only devices with static addresses assigned to WAN1. I've got some devices that are DHCP on WAN1 and they weren't affected. ... View more

I upgraded a few to test with, any without dual WAN connections immediately quit passing traffic. WAN2 showed 100% loss, even though there was never a WAN2 connected. I converted LAN to WAN and then WAN to LAN and everything started functioning properly and the WAN2 loss went away and the networks started functioning properly. ... View more