Port Forwarding the 3com 3CRWER100-75 Router for QSee QR404-403-4


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.

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Home > Routers > 3com > 3CRWER100-75 > QSee QR404-403-4

Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the 3com 3CRWER100-75 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:

192.168.1. <-- Don't Skip This Step!

Login to the 3com 3CRWER100-75 Router

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

How To Find Your 3com 3CRWER100-75 Router IP Address

It's ok if you don't know your 3com 3CRWER100-75 router's internal IP address. You can find it by doing one of the following:

Login To The 3com 3CRWER100-75 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.

3com 3CRWER100-75 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 3com 3CRWER100-75 router. By default the IP address should be set to 192.168.1.1.

3com 3CRWER100-75 Screenshot 1

You should see a box prompting you for your 3com 3CRWER100-75 password. Enter the password now.

The Default 3com 3CRWER100-75 Router Password is: admin


Click the Log in button to log in to your 3com 3CRWER100-75 router.


Default Usernames and Passwords for other 3com Routers

Please visit our Default 3com 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 3com 3CRWER100-75 router password, use our How to Reset a Router Password guide to set your 3com 3CRWER100-75 router back to its factory settings.


How to Port Forward QSee QR404-403-4 on the 3com 3CRWER100-75


Having trouble forwarding ports on the 3com 3CRWER100-75?

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 3com 3CRWER100-75 router to save you time and hassle.

Configuring the DVR to pick up an IP address

  • Press Menu
  • Select Network
  • Make sure Type is set to DHCP

  • Select Apply
  • Select Exit
The DVR will reboot & pick up an ip address from the router.


Identifying the IP address

  • Press Menu
  • Select Network
  • Write down the ip address, subnet mask & gateway.


Assign a Static IP

  • Change Type to Static
  • Input the same ip address, subnet mask & gateway - (you wrote down earlier).

  • Select Apply
  • Select Exit
Now you have completed the ip configuration for the dvr.
Move on to the port forwarding section . in you router.

3com 3CRWER100-75 Router Port Forwarding Screenshots

Now that you are logged in to your 3com 3CRWER100-75 router you should see the following:

3com 3CRWER100-75 Screenshot 2

Click the Firewall link near the left of the page.

3com 3CRWER100-75 Screenshot 3

Forward Ports 80 on the 3com 3CRWER100-75

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. QSee QR404-403-4 requires you to forward the following ports: 80,9000. Go ahead and enter the settings shown above into the Virtual Servers menu.

Virtual Server
Application Name Start ~ End Port Protocol To IP Address Enabled
~ TCP   UDP 192.168.1.


Forward Ports 9000 on the 3com 3CRWER100-75

You should see another page of settings that need to be entered into one of the blank lines on your routers Virtual Servers page. Go ahead and enter those settings now.

Virtual Server
Application Name Start ~ End Port Protocol To IP Address Enabled
~ TCP   UDP 192.168.1.

When you're finished, click Save near the right of the screen to save your changes.

And that's it! You're done!


Test if Your Ports are Open

Now that you have forwarded ports for QSee QR404-403-4 on the 3com 3CRWER100-75 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.

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