I’ve set up my MV1000 and it works fine in router mode … for its own network only. I do not route through my USG3 however. I’ve set up the failover exactly as people on various forms have said to do, so it seems that the setup of the MV1000 is not right.

I updated to the latest firmware. Bridge mode is not an option. The only two options I have are Router Mode and Access Point (whatever that is … there’s no explanation at all).

Edit: I did have some success with setting some settings in the advanced mode, but it usually only lasted less than 30secons before it would all come crashing down again.