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Windows is blocking a port even though it is allowed with a inbound rule

Question

Saturday, February 23, 2019 5:24 PM

For context I have used the port in the past on different computers just fine, I have port forwarded in the past with no issue. For some odd reason yesterday my port 25565 was being blocked for no reason, I ended up having the reset my router (ISP instructions) and my Netgear NX6200 Extender. I have made a static IPV4, I have forwarded on port 25565. I checked in CMD to see if they IPV4 matched (It did), and I made a inbound rule for the port on both TCP and UDP. The only thing that I have a lead on is, that I checked  "netstat -a -n" in CMD and couldn't find my port in there.   I also reset my computer, router, and extender with no avail. If anyone knows how to deal with this issue please let me know. 

All replies (5)

Tuesday, February 26, 2019 6:46 AM | 1 vote

Hi,

Thanks for your question.

I suggest you to turn off the firewall to make sure whether it is cause by firewall.

This may also be cause by your router or ISP.

Best Regards,

Eric

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Wednesday, February 27, 2019 9:41 AM | 1 vote

Hi,

Just checking in to see if the information provided was helpful.

Please let us know if you would like further assistance.

Best Regards,

Eric

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Tuesday, March 5, 2019 10:08 PM

Oh hello, sorry for neglecting the forum. I thought it was dead, yeah disabling the firewall just makes the connection get outright refused. ISP has already declared that it isn't their side since then, and that's about all the info I have. If you would like I can show you my ipconfig or settings to help find the issue.


Friday, March 8, 2019 2:24 AM

Hi,

Thanks for your reply.

We can enable firewall log to check whether the port is blocked by firewall.

About how to enable firewall log you can refer to this article:

https://serverfault.com/questions/26564/how-to-check-if-a-port-is-blocked-on-a-windows-machine

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

Best Regards,

Eric

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
If you have feedback for TechNet Subscriber Support, contact [email protected].


Monday, March 11, 2019 10:39 PM

https://pastebin.com/YVMGGzgN 

That's what the log looked like after I tried a connection to the port. 

I used this website https://www.canyouseeme.org/ 

To give more info https://pastebin.com/eA7KU6EV I ran "netstat -a -n -o" while having my server running to see if it was in there. Either my eyesight is failing me, or it's not in there which leads me to believe it is being blocked, but I don't know what unknown force is doing to considering I believe i have no third party firewall.