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Charter WiFi Netgear WNDR3800/4300 Security Options

Netgear WNDR3800 and 4300

Using certain features of the Netgear WNDR3800/4300 you can prevent objectionable content from reaching your PCs and other devices connected to your network. This article provides information to help you setup and manage the security settings of the WNDR3800/4300.
 
 

General

Router Login

  1. Launch a browser from a computer or wireless device that is connected to the router
  2. In the address bar type routerlogin.net or routerlogin.com and press Enter

routerlogin.net

The login window displays:

login window

  1. Enter your user name and password. Note: The user name and password is case sensitive

The default user name is: admin
The default password is: password

  1. Click the OK button

You will be taken to the router’s Home Screen

router home screen

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Change Security Options

Mixed Mode

By default Charter WiFi is set to WPA2 encryption. Some older wireless devices (e.g. USB wireless adapters and wireless adapter cards) may not support WPA2 encryption. If a wireless device does not support WPA2, it will not be able to join your wireless network.
If you have an older wireless device that does not support WPA2 you can change the Security Option to WPA-PSK [TKIP] + WPA2-PSK [AES], also known as Mixed Mode.
This will allow newer wireless devices to use the enhanced security of WPA2 encryption while enabling older wireless devices to connect using WPA encryption.

  1. Log in to the router. Click here for instructions
  2. On the Basic tab click Wireless
  3. In the 2.4GHz section check the radio button for WPA-PSK [TKIP] + WPA2-PSK [AES]
  4. Verify the password is correct in the Passphrase field
  5. Click Apply

WEP

Wired Equivalent Privacy (WEP) is a security algorithm for wireless networks. WEP was introduced as part of the original 802.11 wireless standard. Due to WEPs numerous security flaws it is relatively simple for determined people to crack its security and is not recommended for securing wireless networks.

Some very old wireless devices may only be capable of using WEP. If you attempt to connect a wireless device that only supports WEP, it will not be able to join your wireless network.
If you have a wireless device that ONLY SUPPORTS WEP and understand the risks of using WEP encryption on your wireless network, follow the instructions below.

  1. Log in to the router. Click here for instructions
  2. On the Basic tab click Wireless
  3. Click the dropdown box next to Mode and select Up to 54 Mbps

  1. The option for WEP will now be displayed under Security Options
  2. Select the radio button next to WEP
  3. Select an Encryption Strength (64-bit or 128-bit)
  4. Enter a Security Encryption (WEP) Key (Up to 4) Click here for more information
  5. Click Apply

WEP Key Requirements

WEP keys are a series of hexadecimal characters.

Hexadecimal characters include:

  • The numbers 0-9
  • The letters A-F

The length of a WEP key is determined by the type of Security Encryption you choose

  • 64-bit encryption strength will be 10 characters in length
  • 128-bit encryption strength will be 26 characters in length

Example:

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Additional Security Options

Keyword Blocking of HTTP Traffic

Use keyword blocking to prevent certain types of HTTP traffic from accessing your network. The blocking can be always on or according to a schedule.

  1. Log in to the router. Click here for instructions
  2. Click on the Advanced tab
  3. Click Security
  4. Click Block Sites

Block Sites

  1. Select one of the Keyword Blocking options
    • Per Schedule - Turn on keyword blocking according to the Schedule screen settings. Click here for information on setting up the schedule
    • Always - Turn on keyword blocking all the time, independent of the Schedule screen
  2. In the Keyword field, enter a keyword or domain, click Add Keyword. The Keyword list supports up to 255 entries. Note: To block all internet browsing access enter a period (.)

Keyword Blocking

  1. Click Apply to save your changes

Apply

To delete a keyword or domain

  1. Highlight the keyword or domain you want to delete from the list
  2. Click the Delete Keyword button

Delete Keyword

  1. Click Apply to save your changes

Apply

To specify a trusted computer

You can exempt one trusted computer from blocking and logging. The computer you exempt has to have a fixed IP address. Click here for instructions on setting up address reservations.

  1. In the Trusted IP Address field, enter the IP address of the computer you want to specify as the trusted computer

Allow trusted IP

  1. Click Apply to save your changes

Apply

Block Services (Port Filtering)

The Block Services screen lets you add and block specific Internet services by computers on your network. This is called service blocking or port filtering. To add a service for blocking, first determine which port number or ranges of numbers are used by the application.

  1. Log in to the router. Click here for instructions
  2. Click on the Advanced tab
  3. Click Security
  4. Click Block Services

Block Sites

  1. Select one of the Services Blocking options
    • Per Schedule - Turn on keyword blocking according to the Schedule screen settings. Click here for information on setting up the schedule
    • Always - Turn on keyword blocking all the time, independent of the Schedule screen
  2. Click the Add button to add a service 

Services Blocking

  1. From the Service Type list, select the application or service to allow or block. The list displays common services. If the service does not appear in the list select User Defined
  2. Select either TCP or UDP. If you are not sure, select Both
  3. Enter the starting and ending port numbers. If the application uses a single port number, enter the same number in both fields
  4. Select a radio button for the IP address configuration you want to block
    • Only This IP Address – Specify one specific IP Address
    • IP Address Range – Specify a range of IP Addresses
    • All IP Addresses – All devices on your network
  5. Click Add to enable your Block Services Setup selections

Block Services Setup

Edit or Delete a Blocked Service

  1. Check the radio button next to the service you want to edit or delete
  2. Click either the Edit or Delete button

Delete Blocked Service

Schedule Blocking

You can specify the days and time that you want to block Internet access.

  1. Log in to the router. Click here for instructions
  2. Click on the Advanced tab
  3. Click Security
  4. Click Schedule

Schedule Blocking

  1. Set up the schedule for blocking keywords and services
    • Days to Block - Select days on which you want to apply blocking
    • Time of Day to Block - Select a start and end time in 24-hour format, or select All Day for 24-hour blocking
  2. Select your time zone from the list. If you use daylight savings time, select the Automatically adjust for daylight savings time check box

Schedule

  1. Click Apply to save your settings

Apply

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