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 requires UPnP. By default, UPnP is disabled to ignore communication requests for UPnP-enabled devices in the home network. This document describes how to enable UPnP in the SBG6900-AC.
NOTE: With UPnP enabled, a virus, Trojan horse, worm, or other malicious programs 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 SBG6900-AC, and disable UPnP to avoid the security vulnerabilities associated with this protocol. For assistance with port forwarding, refer to article # 15832 - SBG6900-AC (v1.5.x): Port Forwarding Setup.   Â
Enable UPnP
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- 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.
 - 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 SBG6900-AC, 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 # 18753 – SBG6900-AC: Web Manager Access.
 - Click the Login button.  The Home page will appear.
 - Move the mouse cursor over Advanced on the top menu, and click the Options link from the drop-down submenu.  The Advanced - Options page will appear.
 - On the Advanced Options page, check the UPnP Enable option.
- Click the Apply button.
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