Restricting local network file sharing to a specific network adapter

Question

I have two windows 10 pc's connected to my home router via wifi. I want to xfer files between them via hardwire rj45 ports, so i connect a crossover cable and set up workgorup file share, setting a static IP to each wired NIC. Now when i transfer files, sometimes it goes via wifi, and sometimes wired (based on the NIC activity in task manager).

I disabled "file and printer sharing for Microsoft networks" on the wireless nics, (which would cause other issues) but it didn't seem to do anything as I can still access my NAS and a third windows 10 pc file share over wifi and file xfers between the two pc's still sometime run over wifi.

Thanks

Unfortunately disabling the wireless nic wouldn't work as the one computer is headless and accessed strictly via remote desktop (from many computers), as well as no internet access.

Answer 1

what about setting the ipv4 settings for each wired nic to a different subnet

Yes, that's correct. Set the adapters and devices up on separate subnets.

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Answer 2

Simplest solution would be to disable the wireless adapter.
https://support.microsoft.com/en-us/topic/how-multiple-adapters-on-the-same-network-are-expected-to-behave-e21cb201-2ae1-462a-1f47-1f2307a4d47a

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Answer 3

Regardless having two network adapters on the same network will always be problematic.

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Answer 4

File and printer sharing is not adapter specific but is machine specific. Simplest solution is to put each adapter on a different subnet.

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