Hi Balublue,
DLNA stands for Digital Living Network Alliance. The Digital Living Network Alliance (DLNA) is a non-profit trade organization that comprises most major electronics and software companies. DLNA maintains a strict set of guidelines that allows computers
and other devices to share digital media via a network.
Digital Living Network Alliance (DLNA) is a media sharing standard designed to allow networked PCs, printers, consoles, tablets, phones and other devices to communicate and share media such as photos, video and music over a wireless network.
The goal of this nonprofit trade organization is to ensure product interoperability over a wireless home network. DLNA-certified devices are equipped to discover, connect and communicate with one another over a shared network, which potentially gives
you, the consumer, multiple options by which to play back and display video, audio and photo files.
Several manufacturers offer devices that provide a great streaming experience. Other manufacturers don’t always advertise that their devices are compatible, yet many people report a great experience with them. If you’re looking for a new device or
want to know more about device compatibility, be sure to look through both the Windows Compatibility Center and the Windows Certified Products List. It’s not always simple to know ahead of time if you can stream to a specific device, so doing some research
before you start can help minimize frustration later.
Here are more considerations about compatible devices.
•A simple way to start streaming is through an Xbox 360. When you choose the device to stream to, select the Xbox 360 rather than the devices connected to it.
•Many devices with DLNA certification will work with Play. However, a device with this certification logo doesn’t by itself mean you can stream to it. Be sure that the specs for the device say it has a Digital Media Renderer (DMR) certification.
•If you're going to stream directly to a TV or speakers, follow the instructions the device manufacturer provides to connect the device to your network. In many cases, this is as simple as connecting the device to your router with an Ethernet cable.
Once you connect a device to your network and have sharing turned on, Windows should automatically find the devices that work with Play.
Further, I am happy to know that the issue is resolved now. To know the cause of this issue, you may put the computer in a clean boot state and observe the computer for about a week and check if the issue persists.
When you start Microsoft Windows, typically there are several programs that start automatically and run in the background that may interfere with this program, application
or device. These programs may include antivirus and system utility programs. When you perform a clean startup procedure, you prevent these programs from starting automatically.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7, Windows 8:http://support.microsoft.com/kb/929135
Note: After you have finished troubleshooting, follow steps under “How to reset the computer to start as usual after troubleshooting with clean boot” in the article to boot to normal startup.
Feel free to post your query here on Windows Forums, we would be happy to assist you.