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VII. Router Diagnostics

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I have set up Port Forwarding it is not working, what is the most likely cause?

Products:
Vigor 2620Ln
Vigor 2760
Vigor 2762
Vigor 2763
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Keywords:
Inaccessible
NAT
Not Working
Open Ports
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A software firewall on the internal PC / device is protecting it from the Internet, blocking the incoming users. Either Disable the software firewall or configure it to allow the required Service, Ports and/or Protocols.

The Service may not be running on the device. Check that the correct port is listed as Listening using the 'netstat -a' command from a command / DOS prompt.

The Default Gateway of the internal device is not set as the Vigor Router.

Your ISP is also blocking the Port / Service that you are trying to open. This is most common when setting up SMTP inbound.

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First Published: 18/03/2013
Last Updated: 22/04/2021