NetworkManager err adding wireless: property '%s' / '%s' invalid

[jimav]

Binary package hint: network-manager

Network Manager can not configure wireless connections.

There are at least two critical problems:

1. Enter any SSID (valid or not) and click Apply, taking defaults for everything else,
    and it always fails with a pop-up saying:

          Error editing connection: property '%s' / '%s' invalid: %d
          NMSettingWireless

2. Enter an SSID, click the 'Wireless Security' tab, and select "WEB 40/128 bit key".
     The Apply button then becomes permanently grayed out. It remains inactive even after
     entering a 26-digit hex number (which is how 128-bit keys are represented, not sure why).

      ==> Since the Apply button remains grayed out, you can never proceed.

I'm using a Belkin F5D7050 v4000 USB wireless adaptor, although the above bugs look like they are
in high-level GUI software.
"sudo iwlist scan" shows my adaptor as wlan1 and lists my wireless Access Point correctly, so the hardware is working at least at a low level.

ProblemType: Bug
Architecture: i386
CRDA: Error: [Errno 2] No such file or directory
Date: Sun Oct 4 16:08:34 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/sbin/NetworkManager
Gconf:

IfupdownConfig:
 auto lo
 iface lo inet loopback
IpRoute:
 169.254.0.0/16 dev eth0 scope link metric 1000
 10.0.0.0/8 dev eth0 proto kernel scope link src 10.0.0.7 metric 1
 default via 10.0.0.2 dev eth0 proto static
Package: network-manager 0.8~a~git.20090923t064445.b20cef2-0ubuntu2
PciNetwork:

ProcEnviron: PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
RfKill:
 1: phy1: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: network-manager
Uname: Linux 2.6.31-10-generic i686
WifiSyslog:

[jimav (james-avera)]

As a side-note, the reason "128 bit" WEP keys are 26 hex digits is that internally only 104 bits of shared secret are used (hence 26 hex digits), plus 24 randomly generated Initialization Vector bits.

[Alexander Sack (asac)]

bug 438771