The Access Control feature in the SBG6400 determines whether wireless clients are allowed or denied access to the wireless network. When enabled, Access Control can be set up in one of two ways:
- Allow access to everyone, except the clients listed.
- Deny access to everyone, except the clients listed.
Whether if access is allowed or denied is determined by the client's MAC address.  For instructions on how to locate the MAC address in Windows and Mac operating systems:
Refer to Answer #Â 22248 - Windows 8: Finding the MAC address
Refer to Answer #Â 20613 - Windows 7: Finding the MAC address
Refer to Answer #Â 20446 - Finding the MAC address in Windows and Macintosh systems
For all other devices, please refer to the manufacturer to locate the MAC address.
NOTE: Even if a client is allowed by Access Control to connect to the wireless network, it will still need an encryption key to connect (if encryption is enabled for that wireless network).Â
Access Control is disabled by default. This document describes how to enable and configure Access Control.
To Configure Access Control
- Launch a Firefox or Safari browser.  Enter http://192.168.0.1 into the address box, and press the Enter key. Â
NOTE: A browser message on Chrome, Edge, Firefox, and Opera, may appear when accessing the Web Manager. The message includes 192.168.01 uses an unsupported protocol and ERR_SSL_VERSION_OR_CIPHER_MISMATCH. The Web Manager uses an earlier version of the TLS protocol and does not match the version allowed by the web browser.  Safari browsers on Apple PC and mobile devices are not impacted.  The workaround to access the Web Manager with a PC is to use the Firefox browser and set the TLS version to 1. For workaround instructions refer to article # 19435 - 192.168.0.1 uses an unsupported protocol.Â
 - A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager. There is no risk in proceeding to the Web Manager. For instructions to bypass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.
 - On the Login page, enter admin or a customized username in the Username field.
 - Enter password or a customized password in the Password field.
NOTE: On later versions of the SBG6400, the Wi-Fi Security Key is used as the default admin password printed on the bottom white label. For assistance with Web Manager Access, refer to article # 18730 – SBG6400: Web Manager Access.
 - Click the Login button. The Home page will appear.
 - Move the mouse-cursor over the Wireless tab and select the Access Control from the drop-down submenu. The Wireless - Access Control page will appear.
 - On the Wireless - Access Control page:
a.  Selected Network  - Click the drop-down menu and choose the desired network.   Â
b.   MAC Restrict Mode - Click the drop-down menu and choose the desired setting.
   - Disabled - Access Control is off.
    - Allow - Denies access to all wireless clients except those clients listed in the MAC Addresses fields.
    - Deny - Allows access to all wireless clients except those listed in the MAC Addresses fields.
c.  Enter the MAC addresses of the devices to allow or deny access in the MAC addresses fields.
   - If MAC Restrict Mode is set to Allowed - Enter the MAC addresses of the wireless clients that will be allowed access.
    - If MAC Restrict Mode is set to Denied - Enter the MAC addresses of the wireless clients to be denied access.
d.  Click the Apply button.
NOTE: In the example below, the MAC Restrict Mode for the Primary Network has been set to Deny.  As a result, all wireless clients are allowed by Access Control to connect to the network except for one device, which has a MAC address of 00:16:CB:00:59:B6.  This device will be denied access.Â