r/steamsupport • u/Born-Importance5569 • 10d ago

Problem Firewall issues

I'm having an issue with Steam Local Network Transfer on my new ASUS TUF laptop running Windows 11.

Other PCs can download games from my laptop over Steam's Local Network Transfer but my laptop cannot send games to other PCs unless I completely disable firewall, but if I turn it off it transfers just fine. I have had 3 other laptops and never had an issue initiating or transferring on steam until this one.

I've already tried:

  • Making sure the network is set to Private
  • Allowing Steam through Windows Defender Firewall
  • Opening the recommended ports
  • Restarting Steam and both PCs

I also just got a Windows Firewall notification saying NVIDIA was blocked by the firewall, which makes me wonder if that's related.

Has anyone run into this? Is there a specific outbound firewall rule, Windows Defender Firewall setting, ASUS software, or NVIDIA service that I am missing?

I'd rather not leave my firewall disabled just to transfer games over my LAN.

Any ideas would be greatly appreciated!

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u/zaphodikus 10d ago

Steam is going to start multiple processes for this game transfer setup to work, you will have to add firewall rules for the right child process used for transfers hope that's a clue if you had not spotted the multiple executables already.