My model does not come up in the in the pull down menu.  My actual model is AC 5400.  

After I updated to the firmware version indicated, the networks are no longer identified by by band.  It used to *network name* 5G1, *network name* 5G2 etc.  Now I only see one instance of *network name*.  Stangely enough when I click on the network name for additional information it states that I am on a 5G or 2.4 network.  Is that normal or have I done something that I am not aware of?  Thanks!