this post was submitted on 03 Oct 2025
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Port Forwarding: How does it work? (pawb.social)
submitted 2 weeks ago by trslim@pawb.social to c/techsupport@lemmy.world
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I have been attempting to open a port to host an Arma 3 server but have been unable to. I have a logged into my router, and opened the ports, but they remain closed when I try to test the ports.

I have a rather unusual setup for my connection, I'll admit, where I use Ethernet, but its through a Powerline Ethernet Adapter. Could that be a problem with port forwarding?

I use an older router, a Motorola MT7700, I think, (Im not at home to check atm.) I run Linux Mint, it has no problems afaik.

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[–] fuckwit_mcbumcrumble@lemmy.dbzer0.com 3 points 2 weeks ago (2 children)

but they remain closed when I try to test the ports.

Have you had someone else try? Not all routers correctly handle NAT reflection. Try a too like this.

https://www.yougetsignal.com/tools/open-ports/

[–] trslim@pawb.social 1 points 2 weeks ago

ill try it out

[–] trslim@pawb.social 1 points 2 weeks ago

yougetsignal is saying the port is closed