WNDR4500v3 N900 can't access settings while in bridge mode

I am attempting to use my router to access internet through a third party wireless network. When I activate bridge mode and provide the necessary (and correct) network information (SSID, security, and passphrase), I invariably lose access to the router settings alltogether.

What I observe happening is, the 2.4 and 5 GHz WIFI lights turn off, all the remains is the solid green power light and the solid green LAN port light associated with the port my computer is currently plugged into (I have tried all four ethernet ports in various attempts to rule out hardware problems)

It appears that the router is not connecting to the wireless network that I specify as I do not get an active internet connection, nor does the internet light on the router turn on. However, the purpose of the question is specifically about accessing the router settings. My computer is still connected to the router via ethernet, but, once in bridge mode, trying to access routerlogin.net no longer takes me to the settings portal, so the only way I've been able to regain control of my router is to perform a factory reset.

Is there a different way I am supposed to gain access to router settings while in bridge mode?