Unable to open ports on Windows 10

Question

I have set up rules to open ports 80, 500, 19284 on the Windows firewall. I have set up rules for UDP and TCP, however, I am unable to access the ports using the Telnet 127.0.0.1 command. I get the can't open port message. When I disable the firewall I am also unable to connect to these ports. I need the ports open to allow Active Sky 2016 to connect to Microsoft FSX.

I am running all programs as administrator.

What could be the issue?

Answer 1

It's difficult to determine the problem without additional troubleshooting. I suggest using native commands for your port tests vs telnet. Below is an example of "Test-NetConnection"

If you need specifics on the using type: get-help Test-NetConnection -examples in a powershell prompt. This will more effectively aid you in determining if a port is open.

Example of usage:

Test-NetConnection -ComputerName 127.0.0.1 -Port 80

ComputerName : 127.0.0.1

RemoteAddress : 127.0.0.1

RemotePort : 80

InterfaceAlias : Loopback Pseudo-Interface 1

SourceAddress : 127.0.0.1

TcpTestSucceeded : True

Answer 2

Hello,

To troubleshoot this issue, I would recommend the following steps:

1. Check if the ports are open and listening by running the command "netstat -an" in the command prompt. This will display all open ports and their status.
2. Verify that the rules you created are correct and are applied to the correct network profile (public, private, or domain).
3. Check if any other security software or antivirus is blocking the ports. You may need to temporarily disable them to test if they are causing the issue.

Best Regards,

Hania Lian

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