Port Forwarding the Comtrend CT-5621 Router for Utorrent


What is Port Forwarding?

If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.

View Comtrend Router Screenshots from our Database

You might also be interested in our huge collection of Router Screenshots where you can see every page of every router that we know of.

Home > Routers > Comtrend > CT-5621 > Utorrent

Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the Comtrend CT-5621 router your computer needs to have a static IP address. You should complete one of the following steps first:


Now that you have setup a Static IP Address on your computer, please enter the IP address that you assigned to your computer here:

Don't Skip This Step!

Login to the Comtrend CT-5621 Router

Now we need to know your routers IP address. You can find it a variety of ways.

How To Find Your Comtrend CT-5621 Router IP Address

It's ok if you don't know your Comtrend CT-5621 router's internal IP address. You can find it by doing one of the following:

Login To The Comtrend CT-5621 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

Comtrend CT-5621 Screenshot 0

In the picture above the address bar has http://www.google.com in it. Just replace all of that with the internal IP address of your Comtrend CT-5621 router. By default the IP address should be set to 192.168.1.1.

Comtrend CT-5621 Screenshot 1

You should see a box prompting you for your username and password. Enter your username and password now.

The Default Comtrend CT-5621 Router Username is: admin

The Default Comtrend CT-5621 Router Password is: admin


Click the Ok button to log in to your Comtrend CT-5621 router.


Default Usernames and Passwords for other Comtrend Routers

Please visit our Default Comtrend Router Passwords page if the username and password shown below did not work for you.

If you can't login to your router because you forgot your Comtrend CT-5621 router username and password, use our How to Reset a Router Password guide to set your Comtrend CT-5621 router back to its factory settings.


How to Port Forward Utorrent on the Comtrend CT-5621


Having trouble forwarding ports on the Comtrend CT-5621?

If you are having trouble with this guide, then perhaps PFConfig may be your solution. PFConfig is a software tool that will automatically forward ports for your Comtrend CT-5621 router to save you time and hassle.

Before we can forward ports for Utorrent, we need to figure out what ports Utorrent is using. Here is a brief walkthrough on how to do that. Go ahead and open up Utorrent.

Click Options in the menu at the top of your screen. In the list that drops down click Preferences.

Click Connections on the left hand side of the Utorrent program. You should now see the menu shown in the screenshot above. Make sure the Enable UPnP box is unchecked. The number in the Port Used for Incoming Connections box contains the port you need to forward. You can change the port number, if you want to. Please enter the port you chose into the box below.

Utorrent's Port for incoming connections

Comtrend CT-5621 Router Port Forwarding Screenshots

Now that you are logged in to your Comtrend CT-5621 router you should see the following:

Comtrend CT-5621 Screenshot 2

Click the Advanced Setup link near the left of the page.

You should now see a new menu. In this new menu, click NAT.

You should now see a new menu. In this new menu, click Virtual Servers.

Comtrend CT-5621 Screenshot 3

Click the Add link near the top of the page.

Comtrend CT-5621 Screenshot 4

Forward User Defined Port on the Comtrend CT-5621

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. Utorrent requires you to forward the ports you entered above. Go ahead and enter the settings shown above into the Virtual Servers menu.

Server Name:  
  Select a Service:
  Custom Service:
Server IP Address:


External Port Start External Port End Protocol Internal Port Start Internal Port End

And that is it! You are done!


Test if Your Ports are Open

Now that you have forwarded ports for Utorrent on the Comtrend CT-5621 you should test to see if your ports are forwarded correctly.

To test if your port has been properly forwarded, you can use our Open Port Check tool. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.

Comtrend CT-5621 Router Screenshot Database

Didn't find the screenshot you were looking for? Check our our Comtrend Router Screenshots. We have the Internets largest collection of Router Screenshots.