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Setup Cox Cable Modem And Troubleshoot Internet & WiFi Connection

Cox Communications is one of the leading Cable Internet Service Providers in the USA. They provide high-speed Internet plans for almost all type of users in all over the USA. This tutorial explains how to set up Cox Cable modem by yourself and troubleshoot any network connection issues with their High-speed Internet. We also reveal small tricks to improve both download and upload speed of Cox cable broadband connection. They allow customers to use customer-owned modems to connect to the network. However, if you are looking for Panoramic WiFi, you should go for Panoramic WiFi modem that comes as Cox rental modems which are installed by the company technicians.

How to Setup Cable Modem With Cox High-Speed Internet Connection

This article covers the instructions to configure cable modems which support DOCSIS 3.0 technology and above. Cox High-Speed Internet supports ARRIS / Surfboard modems, Asus CM16 modem, Cisco cable modems, Hitron-Zyxel CDA30360, D-link DCM301, Hitron-Zyxel CDA30360 modem, TP-LINK TC-7610, Linksys, etc.. You can read the configuration and troubleshooting steps with each of the models below.
  1. Setup & Troubleshoot ARRIS / Surfboard Modems with Cox Connection
    Cox supports various models of ARRIS / Surfboard modems like ARRIS / Surfboard CM8200, DG2460, SB6120, SB6121, SB6141, SB6180, SB6182, SB6183, SB6190, SB8200, SBG6400, SBG6580, SBG6700, SBG6782, TG1682, TM3402, WBM760 etc. Step by step instructions to connect Arris modem to Cox cable Internet and configure broadband access are given below.
    1. Connect Modem to Computer
      • Connect one end of coaxial cable comes with Arris modem to Cox cable wall outlet and the other end on the coaxial port of your Arris device.
      • Connect Ethernet port of Arris cable modem to LAN port of your Computer using an ethernet cable
      • Power on Arris modem and computer
    2. Self Activate Arris Modem With Cox Cable Internet
      • You can manually activate your Arris modem with Cox broadband by yourself. All you have to do is to visit the link below.
        http://www.cox.com/activate

      • For more technical assistance to activate Arris modem with Cox high-speed Internet, visit the online support page.
        https://www.cox.com/residential/support/self-activating-your-new-cox-equipment.html

      • If you face any problems while activating Arris modem with Cox, you can get immediate assistance by calling the support number 888-556-1193.

    3. Login to Cox Arris Cable Broadband Modem
      If you wish to access the Arris modem setup page from your computer, type the default login IP on the address bar of a browser. It is important to note that different arris modem models supplied by Cox have different login IP address. To find default login IP Address of a Cox modem, follow the instructions provided in the link below.
      How to Find Default Cox Modem Login IP

      List of Cox Arris Modem Login IP Address and default username and password.
      Modem Model Login IPUsernamePassword
      Arris CM8200192.168.100.1
      Arris SBG7580192.168.0.1adminpassword
      Default Arris CM8200 modem login IP address is 192.168.100.1 and press enter. Without entering Username and password, you can access Arris CM8200 modem configuration page. However, if you have Arris SBG7580-AC modem and want to install Cox WiFi, you should use the IP address 192.168.0.1 and admin as default username. The default password is password.

    4. Setup Cox WiFi on Arris Modem
      After login, Click the Wireless 2.4 GHz or Wireless 5 GHz main menu button on the Arris Web Manager menu bar. Now under wireless basics, perform the following things.
      • Check the enable wireless checkbox. Now Cox WiFi is activated on Arris modem
      • On Wireless SSID field, change the default wireless network name and type a new name for your Cox wireless network.
      • To activate Cox WiFi protection, choose WPA2 on security mode field. Now enter the wireless key on the field below it.

  2. Setup Cox Internet With Asus Cable Modem
    Cox cable Internet supports Asus CM16 modem, and you can manually install Internet on it. Below steps explain how to connect and activate Cox broadband on Asus CM16 modem.
    1. Connect Asus Modem with Computer
      • Using a coaxial cable, connect Asus modem to Cox cable wall outlet.
      • Connect the Ethernet cable to CM-16 and Ethernet port on your computer.
      • Power on both Asus device and computer
    2. Self Activate Asus Modem with Cox Internet
      • You can manually activate your Asus modem with Cox broadband by yourself. All you have to do is visit the link below.
        http://www.cox.com/activate

      • For more technical assistance to activate Asus modem with Cox high-speed Internet, visit the online support page.
        https://www.cox.com/residential/support/self-activating-your-new-cox-equipment.html

      • If you face any problems while activating Asus modem with Cox, you can get immediate assistance by calling the support number 888-556-1193.

  3. Install Cox High Speed-Internet With Cisco Modem
    Cox communications support different models of Cisco modems. Some of them are Cisco DPC3000, Cisco DPQ3925, DPQ3212, DPC3825, Cisco DPC3010, DPC3008. Here we provide instructions to set a Cisco modem with Cox Cable Internet.
    1. Physical Connection of Cisco Modem with Computer
      • Using a coaxial cable, connect Cisco modem to Cox cable wall outlet.
      • Connect the Ethernet cable to Cisco modem and Ethernet port on your computer.
      • Power on both Cisco device and computer
    2. Self Activate Cisco Router with Cox Internet
      You can activate the Internet with your Cisco gateway by visiting the link below.
      http://www.cox.com/activate

    3. Login Cox Supplied Cisco Modem
      The default login IP of Cox supported Cisco DPQ3925 is 192.168.0.1, and you should keep both username and password fields blank.

    4. Activate Cox WiFi on Cisco DPQ3925
      • Once login to the setup page, click on Wireless tab
      • You should click Enable radio button near Wireless Network
      • Change the default name on SSID field and type a new name for your WiFi
      • Select WPA2 as encryption and type password at the pre-shared key field

  4. Setup Cox Cable Internet on DLink Modem
    Cox communications support DLink DCM-301 cable modem and you can install and activate broadband on it. Let us check how to connect D-link DCM-301 Broadband Cable Modem on your office/home and set Cox Internet on it.
    1. Connect D-link Modem to Your PC
      Follow the instructions provided above for other models and power on both D-link gateway and PC.
    2. Self Activate D-Link with Cox Internet
      You can activate Cox Internet on your D-link gateway by visiting the link below.
      http://www.cox.com/activate

      In cases, if you call the support to activate the device (support number 888-556-1193), you may need to register the MAC address of the D-Link modem. The MAC address is on a label on the bottom of the D-link device.

WiFi Troubleshooting

  1. How to Reset and Change Cox WiFi Password

    If you want to change the current Cox Wireless network password, follow the instructions below.
    1. Log in to the setup page

    2. Click on Wireless

    3. Go to Wireless Security

    4. Change the passphrase under WPA/WPA2 encryption with new password

  2. How to Find Cox WiFi Password

    If you forgot the current Cox wireless password, follow the instructions below to recover Cox wireless password.
    1. Look at the bottom panel of your modem and look for password/key.

    2. If you have changed the default password, visit My WiFi portal on Cox.com

    3. Log in to the wireless security page on your modem and check for the passphrase under WPA/WPA2 encryption


Important Tips

  1. Solutions to Slower Cox Cable Broadband Connection Speed 
    If you feel you are not getting a reasonable upload and download speed from your Cox Broadband Service, you may try the solutions provided below.

  2. Cox support number is 1-800-234-3993.

  3. Check Remaining Unused Cox Data Balance
    Once login to Cox account, you can check your unused data balance on data usage meter.

  4. Connecting Extra Router to Cox Network
    If you are looking for assistance to add additional routers to your Cox broadband connection, follow the instructions given in the link below.
    Connecting Multiple Routers to a Network

  5. Third Party Tools to Check Your Cox Connection Speed
    Cox supplies an in-house tool to verify the speed of your network. However, it is recommended to test and verify whether your Cox connection has stead upload and download speed as promised. You can use the tools listed below.
    Tools to Check Internet Upload & Download Speed

Comments

John Nir said…
I wanna know the price of a high speed Cox connection in Michigan. How is your speed in Ann Arbor ?
Alex George said…
@John Nir
If you opt for Cox Internet Essential 30 package, you will be billed $39.99 per month. It is important to note that this charge is applicable only if you subscribe that package for one year.

To check the updated monthly charges, you may visit the link below.
https://www.cox.com/residential/pricing.html
Alan said…
I bought NETGEAR R6700 Nighthawk AC1750 Dual Band Smart WiFi Router, Gigabit Ethernet (R6700)
from Amazon. I am facing trouble with activating it. I tried the Cox broadband page you provided with no luck.
Alex George said…
@Alan

Nighthawk AC 1750 is a WiFi router and you need the modem provided by Cox to configure Internet on it. To get more assistance on this issue, you may contact Cox technical support by using the phone number given below.

1-800-234-3993
Patty Scott said…
I have been with Cox for 3 years but now they raised the monthly charges. I want to know how could they charge 9 dollar as rental fee every month in addition to other charges. I want to use my own modem for Cox and stop paying this monthly rental fee.
Unknown said…
My neighbor is using COX wireless. I would like to know is there any backdoor entry available to access his network? Reference to any tool to hack into COX WiFi would be helpful.
Unknown said…
I am seeing "service interrupted message even though I am online.