I have a Squeezebox Duet, and am running Logitech Media Server Version 7.7.2 - r33893 @ Wed Mar 14 05:46:46 PDT 2012 . Receiver's firmware is version 77.

I recently changed my network's SSID to a unicode string ('ö', bytes 0xc3 0xb6), which broke the setup process of the Duet Receiver. After going through init mode (including after a factory reset), it was unable to connect to the wireless network (short red flashes on the front tricolour LED).

However, I could configure the receiver with Net-UDAP ( http://projects.robinbowes.com/Net-UDAP/trac ) directly. After doing this, the receiver can connect to the wireless network with no problem.

Since Net-UDAP can configure the utf-8 SSID, this may be a problem with the Squeezeserver setup code.

To reproduce:

 * Configure a WPA2 network with the SSID 'ö'
 * Reconfigure the Duet Controller (it will display '??' as the network SSID, but connect without problem)
 * Attempt to re-configure Duet Receiver through squeezeserver, over wired network
 * Receiver will not connect to wireless network

Workaround:

 * Reconfigure Duet Receiver manually with Net-UDAP (`set wireless_ssid=ö`, as
   well as other wireless parameters ).