Sony STR-DN1080 Manual page 12

A USB device is not recognized. [266]
Playback does not start. [267]
A USB device cannot be connected to the USB port. [268]
Erroneous display. [269]
An audio file cannot be played. [270]
Network connection
Cannot connect to the network using WPS via a wireless LAN connection. [271]
Cannot connect to the network. [272]
Cannot control the receiver using a SongPal device. [273]
Cannot control the receiver using a Video & TV SideView device. [274]
Cannot select the [Network Settings] menu. [275]
Home network
Cannot connect to the network. [276]
A server does not appear in the server list. (A message that indicates that the
receiver cannot find the server appears on the TV screen.) [277]
Cannot access to the server, etc., connected to the router via a wireless LAN
connection. [278]
Playback does not start, or the player does not automatically proceed to the next
track or file. [279]
The sound skips during playback. [280]
[No playable file in this category.] appears. [281]
Cannot play copyrighted files. [282]
Cannot select a previously selected track. [283]
Controller devices or applications on the home network cannot connect to the
receiver. [284]
The receiver cannot be turned on by devices on a network. [285]
AirPlay
The receiver cannot be found from an iPhone/iPad/iPod or iTunes. [286]
The sound skips. [287]
The receiver cannot be operated. [288]
Music services
Cannot connect the receiver to a service. [289]
The sound skips. [290]
BLUETOOTH device
Pairing cannot be done. [291]
Cannot make a BLUETOOTH connection. [292]