To test if your port has been properly forwarded, you can use our Network Utilities tool, which includes a free Open Port Checker. Now that you have forwarded ports on the Technicolor DPC3939_-_XFINITY you should test to see if your ports are forwarded correctly.
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 Start Port box and then enter highest number into the End Port box. If you are just forwarding a single port number then you can simply enter that same number into both the Start Port and the End Port boxes. It's possible for this to be either the IP address of your computer or any other IP address on your network that you want ports forwarded to. You need to enter the IP address that you are forwarding ports to in the Server IP Address box. The protocol that you want to forward is selected from the Service Type box. It doesn't really matter what you put into this box, but something that will remind you why these ports are being forwarded is be a good idea.
Starting from the first page in your router: Screenshot of Technicolor DPC3939_-_XFINITY.Ĭlick the Advanced link near the left of the page. Now we need to find the port forwarding section in your router.
If you still can't login to your router because you forgot your Technicolor DPC3939_-_XFINITY router username and password, use our How to Reset a Router Password guide to set your Technicolor DPC3939_-_XFINITY router back to its factory settings. If your username and password do not work then please visit our Default Technicolor Router Passwords page.
It is important to setup a static ip address in the device that you are forwarding a port to.