Monoprice PID 8743 Wireless N ADSL2 Modem and Router 802 11N WPS Function 2T2R 300Mbps - Manual (Page 92)

ADSL2/2+ Router
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Select “Enable UPnP” and then click “Apply/Save” to save the settings.
Note:
1. Because the security of current UPnP version has not been
guaranteed, please close it when you do not need it.
2. Only the application programs that support UPnP protocol can use
this function. MSN Messenger may need to be supported by Operating
Systems such as Windows XP/ ME.
3. UPnP function needs the support from Operating Systems such as
Windows XP/ME
.
4.2.15 Interface Grouping
If your ADSL line supports multi-WAN connection(there are multiple
groups of PPPOE or other access modes),and you wish some LAN
ports of your router(or the wireless network) to solely share one of the
WAN ports, then you may fulfill this function by configuring the
interface grouping.