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