248 - Universal plug and play - disabled

I kept getting something trying to access port 1900 popping up on my anti-virus. So I did some investigation. Seems like someone from the outside was trying to access my PC via that port. Read the info on the following sites to see if you might want to disable it.

Link - updatexp.com (has more detailed info)
Link - grc.com (click on upnp link)