Answer | UPnP™ (Universal Plug and Play) is a set of protocols that allows a device to automatically discover other UPnP devices (anything from an Internet gateway device to a light switch), for communication, entertainment, and sharing data.  UPnP-enabled devices (such as PCs or gaming consoles) can retrieve the router's WAN IP address, and automatically create NAT port maps. This is an ideal setup for applications or services that require UPnP. By default, UPnP is enabled to allow communication for UPnP-enabled devices in the home network. This document describes how to disable UPnP in the G34/G36.
NOTE: With UPnP enabled, a virus, Trojan horse, worm, or other malicious program that manages to infect a computer/device on the local area network could bypass the firewall completely. Since UPnP assumes local programs are trustworthy and allows them to forward ports. It is recommended to manually configure port forwarding in the G34/G36, and disable UPnP to avoid the security vulnerabilities associated with this protocol. For assistance with port forwarding, refer to article # 19098 - G34/G36: Port Forwarding Setup.  Â
Disable UPnP
- Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter http://192.168.0.1 into the address box, and press the Enter key. The https:// Redirect page will appear.  Â
 - The SURFboard Web Manager is begin redirected to a more secure connection, click the Proceed button to continue.  The Gateway > Login page will appear.
 - 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.
NOTE: The Home Network Wizard will appear if this is the first time accessing the Web Manager. For assistance with the wizard, refer to article # 19077 - G34/G36: Web Manager First Time Login.
 - The Username field has admin populated, enter the custom password in the Password field.
NOTE: If the Login page prompts for email address and password, retrieve the email address and password in the app to sign in. For detailed instructions in the app, refer to article # 19069 - SURFboard Central: Web Manager Access.
 - Click the Login button.  The Gateway > Summary page will appear.
 - On the left-hand menu, click the Advanced link.  The Advanced > Port Forwarding page will appear.
 - Click the Device Discovery sub-menu link.  The Advanced > Device Discovery page will appear.
 - Click the Disable button for the UPnP option, then click the Save button.
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