We have an ASUS RT-AC68U router serving our home network. The desktop is wired and runs W7HPx64 SP1. All addresses are manually assigned for my convenience. The Lumia 630 OS is W8.10.14234.0. Our problem is that the Lumia is visible on the router on 2.4GHz (we don't see a need for 5GHz) but File Explorer on the desktop does not see the phone. Compounding the frustration is that there appears no way for the Lumia to show the desktop. We do have the "Folders" app from BitApp Studio, but that is not helping at the moment. A possibly related annoyance is that we cannot even ping the phone from the desktop if the display has timed out.
Is there something we should know about networking with the Lumia?