How to Connect an Extra Router to a Modem?

Such devices are called SOHO devices (Small Office Home Office Devices).

The solution is to share home devices between two wireless networks (created by two wireless routers).

The networking term for adding a router to a modem is router cascading.

1. To cascade a wireless router to your IPS modem, we need the IP addresses of both the router and modem.
2. We need the login username and password of the router.

1. Connect the Modem to Your PC:
   
   Connect your computer to the modem (LAN Port) with an Ethernet cable. Switch on the modem.
2. Make sure you can access the Internet:
   
   Press Windows and S keys together to open Windows Search. Type Command Prompt on the search and open it.
   
   
   
   Type the following command and press the Enter key.
   
   

   ping www.systosys.com

   
   
   Make sure you get replies.
   
   
   
   
   You can see the ping replies from the screenshot.
3. Check the Modem IP Address:
   
   Before connecting a new wireless router to the modem, we need to know the modem's IP address. Let us check how to do it.
   
   Type the following DOS command on the Command Prompt.
   

   ipconfig

   Press the Enter key. Now look for the default gateway. Leave the IPv6 address.
   
   
   
   
   The default gateway of my modem is 192.168.225.1. It is the IP address of your Internet modem.
   

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   Note that the most common modem's IP addresses are:
   
   192.168.0.1
   
   192.168.1.1
   
   192.168.2.1

   
   
   Write down the modem's IP address.
4. Disconnect the Modem:
   
   Disconnect the Ethernet cable from the modem. You can switch off the modem (though not necessary).
5. Connect Router to Your Computer:
   
   Connect your laptop ( LAN port) to the router (LAN port) with an Ethernet cable. Switch on the router and wait for one minute.
6. Check the IP address of the router:
   
   You can find the router's IP address, login username, and password from the sticker on the router box.
   
   Now check if the router's IP address is the same as the modem. If not, you do not need to change anything on the router.
   
   You must change the router's IP address if it is the same.
   
   

   In my case: If the router's IP address is not 192.168.225.1, I do not need to change the IP address from the router's side.

   
   If the router and modem have the same IP address, change the third octet of the router's IP address.
   
   In my case: I can use any number from 0 to 254 except 225 on the third octet.
   
   Example: 192.168.5.1
7. Change the Router's IP Address:
   
   You can skip this step if the modem and router have different IP addresses. To change the router's IP address, follow the steps below.
   
   1. Type the router's IP address on the browser address bar. Press the Enter key.
   2. Log into the router's setup page using the username and password.
      
      You can find them on the sticker ( router or router box).
   3. Go to the settings and change the current IP address of the router to a different IP address.
      

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      Some examples:
      
      192.168.0.1
      
      192.168.1.1
      
      192.168.2.1

      
      Save the changes.
8. Connect The Modem To The Router
   
   Connect the LAN port of the modem to the WAN Port (Internet Port) of the router with an Ethernet cable.
   
   Power on the modem (If it was off) and check whether you can access the Internet on your computer.

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