Sonos ZonePlayer 90 Guide D'installation page 34

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Sonos ZonePlayer 90 Setup Guide
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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