Sonos ZONEPLAYER 120 Setup Manual page 21

Sonos ZonePlayer 120 Setup Guide
When adding the handheld Sonos Controller, it fails to detect the
ZonePlayer(s)
Wireless interference or a network problem may be preventing the Controller from joining your
Sonos Multi-Room Music System.
1. Verify that this is not a DHCP or network problem.
• Disconnect the Ethernet cable from the back of the ZonePlayer so that it is not connected
to your network.
• Unplug the ZonePlayer's power cord and then plug it back in.
• When the status indicator light on the front of the ZonePlayer stops blinking white, try
adding your Controller again.
If it works, your router's DHCP server may have run out of available IP addresses to assign to the
Controller. In most cases you can log into your router by typing http://192.168.1.1 into your
browser's address line (the IP address of your router may be different). Check the DHCP settings
and increase the number of IP addresses available in the DHCP scope.
If your Controller still does not recognize the ZonePlayer after completing this step, you can try
step 2 below.
2. Turn off any 2.4GHz cordless phones.
Some 2.4GHz cordless telephones can cause wireless interference. If turning off your 2.4GHz
cordless phone resolves the problem, you should consider switching to a 5.8Ghz or 900Mhz
phone (or change the wireless channel your Sonos system is operating on - see step 4 below.)
3. Put 108 Mbps wireless routers into 54 Mbps mode.
Sonos cannot function properly when a router is operating in turbo mode. In order to double the
speed from 54 Mbps to 108 Mbps, the router goes into a wide bandwidth mode which utilizes
most of the 2.4 GHz spectrum that the FCC has set aside for 802.11b/g devices. This means that
interference (RF noise) will occur with any other 2.4 GHz device that is not operating on the same
channel as the 108 Mbps device (usually channel 6). While it is possible to put all of your wireless
devices on channel 6, it is unwise. The devices will have to compete for available bandwidth, and
your entire wireless network will become sluggish and bogged down.
4. Change the wireless channel your Sonos system is operating on.
• Using the Desktop Controller for Windows: From the File menu, select Preferences. Click
the Advanced tab, and select another wireless channel from the Wireless Channel list.
• Using the Desktop Controller for Macintosh: From the Sonos menu, select Preferences.
Click the Advanced tab, and select another wireless channel from the Wireless Channel
list.
It may take several seconds for the switch to take effect. If you have music playing, a short music
dropout will occur during the wireless channel change.
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