Can't find DSL Modem, Pass Through

I have a R7000 and a GT784WN DSL Modem.

I just set the Modem to "Pass Though" to the R7000.
Did a 'shields up' scan which turned out good.

Now I have the R7000 doing the Username and password login to my DSL provider.

This works great because it gives the R7000 more control, but I can not find my GT784WN now. Ya I know it is on the desk next to the R7000 where it was before.

I can not see it on the using the IP address it was under before.
I did a couple scans and did not find anything.