When I first encountered the problem it was only after adding a new PC to the network, and the new PC could not communicate with any other devices over the network with uPnP.scottycope wrote:That's odd that the default setting is Enabled, yet I was able to stream from MM to PS3 previously. Perhaps there was a router firmware update that changed this setting default?
It's not anything to do with firmware as those updates do not happen automatically for this router.