Networking problems- can't see other PCs

M

madkiwi

We have a home networking router (Nighthawk 7000) setup with 3 PCs (2 are Win 10 Home, 1 is Win 7 Home) connected with ethernet, two Win 10 Home laptops connected via wifi.


Here is the current state of affairs, under Explorer>Network:


The Dell Win 7 PC can see all shared devices.

The LG Win 10 laptop can see itself and the Dell Win 7 PC

The Ibuypower Win 10 PC can see the Dell Win 7 PC and the LG Laptop (not itself)

The Lenovo Win 10 laptop can see the LG Laptop but the Dell Win 7 machine only as a media device

The Lenovo Win 10 desktop can see the Dell Win 7 PC and the LG Laptop


We have checked all the usual troubleshooting steps- network is set to private on all computers, sharing is enabled for various folders on all computers, Network discovery and file and printer sharing are turned on.


According to Microsoft that is all it should take, right?


Went into services.msc on all systems and made sure that:

Function Discovery Resource Publication is set to Auto

SSDP Discovery is set to Auto

UPnP Device Host is set to Auto


I'm not a total newbie (my first network was setting up Lantastic 6.0 at an old employer) and this is just weird. It must be something simple that I am not seeing, but damned if I can figure it out. What is really odd is that the Windows 7 machine is the one with everything working...

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