Cosy C6104K routers include a very basic firewall that helps protect your home network form unwanted access from the internet. Since this firewall blocks incoming connections you may need open a port through it for certain games and applications. This process of opening a port is frequently called a port forward, since you are forwarding a port from the internet to your home network.
The basic process to open a port is:
- Setup a static IP address on either your computer or device that you want to forward a port to.
- Login to your Cosy C6104K router.
- Navigate to the port forwarding section.
- Click the General Setup button.
- Click the NAT link.
- Click on Virtual Server or Port Forwarding.
- Create a port forward entry.
While these steps might seem difficult at first, we will walk you through each step for your Cosy C6104K router.
It is important to setup a static ip address in the device that you are forwarding a port to. This ensures that your ports will remain open even after your device reboots.
- Recommended - Our free program will setup a static IP address for you. Download Network Utilities today!
- Another highly recommended way of getting a permanent IP address is to set up a DHCP Reservation.
- Or, follow our Static IP Address Setup guides.
With DHCP reservations you can manage your devices from your router. This centralizes the management of your network and helps prevent IP address conflicts. Using this method you do not have to log in to your devices separately.
Now we are going to login to your Cosy C6104K router. Your router has a web interface, so you will login to it using your web browser. This can be either Chrome, Firefox, Internet Explorer, or Edge. It usually does not matter which browser you choose to use.
Open up your web browser and find the address bar. It should look something like this:
Above is an example of what a web browser address bar looks like. Find the address bar in your router and type in your router's IP address.
The default Cosy C6104K IP Address is: 192.168.2.1
After entering the IP address of your router you can simply press enter. If all goes well you will see the following screen:
You should see a box prompting you for your username and password.
- The Default Cosy C6104K Router Username is:
- The Default Cosy C6104K Router Password is: 1234
Enter your username and password, and then click the Login button to log in to your Cosy C6104K router.
Cosy Usernames and Passwords
If your username and password do not work then please visit our Default Cosy Router Passwords page.
If you still can't login to your router because you forgot your Cosy C6104K router username and password, use our How to Reset a Router Password guide to set your Cosy C6104K router back to its factory settings.
Now we need to find the port forwarding section in your router. Here's how you do it. Starting from the first page in your router:
Click the General Setup button near the left of the page.
Click the NAT link near the left of the page.
You should now see a new menu. In this new menu, click Virtual Server or Port Forwarding.
Here are the ports to forward for Xbox Live:
- TCP Ports: 3074
- UDP Ports: 3074
If you are looking for the ports for a different application you can find it by either:
Forwarding a Single Port
Enter the IP address of the device that you want to forward ports to into the Private IP box. This can be either the IP address of your computer or the IP address of another device on your network.
Enter the port to forward into both the Private Port and the Public Port boxes.
Select the required protocol for these ports from the Type dropdown box.
Put a name for this forward in the Comment box so that you can remember why you set this forward up. The name does not matter so pick something that has meaning to you.
Click the Add button when you are done.
Forwarding a Port Range
Enter the IP address that you are forwarding ports to in the Private IP box. This is either the IP address of a computer or the IP address of another device on your network.
The protocol that you want to forward is selected from the Type box.
If you are just forwarding a single port number then you can simply enter that same number into both the Left Port Range and the Right Port Range boxes. If you are forwarding a range of ports, usually separated by a hyphen, then you need to enter the lowest number of that range into the Left Port Range box and then enter highest number into the Right Port Range box.
Create a name for this forward and put it in the box. The name is only used as a reminder and has no effect on the port forward.
Click the Add button when you are all done.
Your ports should now be open. It is time to test them.
Test if Your Ports are Open
Now that you have forwarded ports on the Cosy C6104K you should test to see if your ports are forwarded correctly.
To test if your port has been properly forwarded, you can use our Network Utilities tool, which includes a free Open Port Checker. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.
Cosy C6104K Router Screenshots
We also have the Internets largest collection of Router Screenshots.