I have had this router awhile. And I just noticed that only two of my wan ports work. Or atleast that what appears to be happening. I tried adding a device to a WAN it didn't work. I went into the router via my browser and saw that two of the four ports were grayed out. See image 

Why would these be grayed out? I don't see a way to turn-on or off these plugs. 

There is nothing plugged into these ports. And even when there is, they are still grayed out. All the lights on my device are green, the firmware is updated and YES - I DID a reset to factory settings.