Sony SRS-ZR7 Help Manual page 170

The [Allow All Media Devices] screen appears. If all the devices in the local network are allowed ([Allow]) to access your
network, select [OK] and close the screen.
Select [Allow all computers and media devices].
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Select [OK] to close the screen.
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Related Topic
Listening to music on a PC via a network (Windows 7) (Windows Media Player)
Listening to music on a PC via a Wi-Fi network
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