I have a pretty straightforward Omada system with an OC200 controller, ER605 gateway, SG2008 switch, and seven EAP225s.  It is running well and is stable.

The gateway is reporting the WAN status as "Link Down" yet I have fine access to the internet on all APs downstream from the gatway / controller / switch.  I can't figure out the problem.  My concern is that if the ER605 is reporting the WAN access to be down, I don't know if the ER605 firewall is functioning.

The switch is reporting multiple GBs in each direction.  The other thing that is a little odd is that the ER605 is showing a LAN connection to my Zyxel c3000z modem/router rather than a WAN connection.

Any suggestions?