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SociaLFish
Beginner
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Message 1 of 15

Double NAT/port forwarding issues?

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Having connection issues for a game, tried to port forward but my ports are still closed. They asked me to check for a double NAT by using tracert and I got 2 private IPs on my first 2 hops which I've read means that there is indeed a double NAT. I only have 1 device (the smart hub type a) and I've tried putting it into DMZ but to no avail, what can I do?

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licquorice
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Message 2 of 15

Re: Double NAT/port forwarding issues?

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@SociaLFish wrote:

Having connection issues for a game, tried to port forward but my ports are still closed. They asked me to check for a double NAT by using tracert and I got 2 private IPs on my first 2 hops which I've read means that there is indeed a double NAT.


No it doesn't. Is the second hop 172.16.12.xx, if so, that is the BT BRAS.

Post the tracert

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SociaLFish
Beginner
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Message 3 of 15

Re: Double NAT/port forwarding issues?

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licquorice
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Message 4 of 15

Re: Double NAT/port forwarding issues?

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No double NAT there.

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SociaLFish
Beginner
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Message 5 of 15

Re: Double NAT/port forwarding issues?

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Alright, seems I was wrong then, but my ports still aren't open even after port forwarding so what could be the cause of that?

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licquorice
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Message 6 of 15

Re: Double NAT/port forwarding issues?

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Try turning off UPnP

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SociaLFish
Beginner
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Message 7 of 15

Re: Double NAT/port forwarding issues?

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Still closed.

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licquorice
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Message 8 of 15

Re: Double NAT/port forwarding issues?

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The port will only be open when the application/game is running. How are you checking?

 

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SociaLFish
Beginner
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Message 9 of 15

Re: Double NAT/port forwarding issues?

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I was using https://www.yougetsignal.com/tools/open-ports/ but I will try running the game and seeing if the issue is still there.

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SociaLFish
Beginner
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Message 10 of 15

Re: Double NAT/port forwarding issues?

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Issue still present.

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