Answer | NOTE: The SBX-AC1200P operates as a wireless extender out of the box. The UPnP is setup in the primary router that manages the home network. If the SBX-AC1200P is operating as a wireless router, proceed with the instructions below.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 requires 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 SBX-AC1200P.
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 SBX-AC1200P, and disable UPnP to avoid the security vulnerabilities associated with this protocol. For assistance with port forwarding, refer to article # 16615 - SBX-AC1200P: Port Forwarding Setup. Â
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Disable UPnP
- Connect a Wi-Fi client device, such as a laptop, smart phone or tablet, to the SBX-AC1200P default wireless network.Â
NOTE: The default wireless name and password is located on the back panel of the SBX-AC1200P. Â
 - 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 Login page will appear.
- On the Login page, enter admin in the Username field.
- Enter password in the Password field.
- Click the Login button. Â The Home page will appear.Â
 - Move the mouse-cursor over Advanced on the main menu and click the Options link on the sub-menu.  The Advanced - Options page will appear.
 - On the Advanced Options page, uncheck the UPnP Enable option (shown below in green).
- Click the Apply button.
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