How to Forward Ports in Your Router for QNAP TS-421

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Port Forward Staff
July 22, 2021 (Last Updated: ) | Reading Time: 2 minutes

When you use a QNAP TS-421 device you might need to forward some ports in your router. Forwarding ports is used to allow incoming connection requests from the internet to a QNAP TS-421 device.

Routers generally do not allow incoming connection requests from the internet. A port forward can overcome this limitation.

Remember to Do These Things Before You Forward a Port

Before forwarding a port make sure that you know these things:

Use a VPN Instead

Have you considered using a VPN instead of forwarding a port? For most users, a VPN is a much simpler and more secure choice than forwarding a port.

We use and recommend NordVPN because not only is it the fastest VPN, it includes a new feature called Meshnet that makes forwarding a port no longer necessary for most applications. With NordVPN Meshnet, you can connect to your devices from anywhere in the world, completely secure, over a highly encrypted VPN tunnel.

When shopping for a VPN, make sure that they meet the following criteria:

This is the list of requirements that we used when we were shopping around for a VPN provider. There are lots of free, shady VPN providers out there that we looked at and dismissed.

Based in Panama, using diskless servers, and with over 6,100 servers in 61 countries, we can safely say that NordVPN satisfies all of these requirements.

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Once you've set up your NordVPN account on multiple computers and enabled Meshnet, you can seamlessly access all of your devices as if they were on the same network. You don't even have to log in to your router. It's very simple.

Every time you click on one of our affiliate links, such as NordVPN, we get a little kickback for introducing you to the service. Think of us as your VPN wingman.

How to Locate Your Router's IP Address

To find your router's IP address the easy way you can use our free Router Detector software. Our Router Detector tool is free to use and is part of our Network Utilities software.

We have a guide you can follow Find Your Router IP Address if you don't want to run the software.

Forwarding a Port for a QNAP TS-421 device

You can use our Network Utilities software to automatically forward ports for you. With Network Utilities, you can easily forward ports and also un-forward ports quickly so that you can keep your network up to date with the ports that you need forwarded and maximize your network security.

Alternatively you can do it by hand. The step-by-step process for forwarding a port is:

You probably will need to reboot your router for the changes to take effect.

You can choose your router from our list to see exactly how to forward ports for a QNAP TS-421 device:

List of Routers - Customized for QNAP TS-421

Set Up a Port Forward for a QNAP TS-421 device

Here is a list of the ports that need to be forwarded for a QNAP TS-421 device:

QNAP TS-421 - PC

  • TCP: 21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559
  • UDP: 6881-6999

Those are the steps to take in order to forward ports in your router for a QNAP TS-421 device.

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