ZyXEL Communications NBG334SH - Manual (Page 159)

Chapter 16 Universal Plug-and-Play (UPnP)
ZyXEL NBG-334SH User’s Guide
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Figure 92 Windows Optional Networking Components Wizard
5 In the Networking Services window, select the Universal Plug and Play check box.
Figure 93 Networking Services
6 Click OK to go back to the Windows Optional Networking Component Wizard
window and click Next.