Red Hat Bugzilla – Bug 470750
NetworkManager no longer manages Intel 3945ABG wifi
Last modified: 2014-10-19 18:56:36 EDT
Description of problem:
My 0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02) is no longer managed by NetworkManager
Version-Release number of selected component (if applicable):
How reproducible: 100%
Steps to Reproduce:
1. Start Network Manager
2. Try to connect to wireless network using nmapplet
nmapplet reports wireless networking unmanaged
Nov 10 09:56:36 deva NetworkManager: <info> wlan0: driver is 'iwl3945'.
Nov 10 09:56:36 deva NetworkManager: <info> wlan0: driver supports SSID scans (scan_capa 0x01).
Nov 10 09:56:36 deva NetworkManager: <info> Found new 802.11 WiFi device 'wlan0'.
Nov 10 09:56:36 deva NetworkManager: <info> (wlan0): exported as /org/freedesktop/Hal/devices/net_00_1c_bf_8b_8b_c4
Nov 10 09:56:36 deva NetworkManager: <info> (wlan0): now unmanaged
Did you check the "Managed by NetworkManager" box in system-config-network? That makes NM ignore the device, and that's the only way this can happen.
That was it - thanks!
I didn't change that setting though - what could have done that?
It's a setting in the ifcfg file (NM_CONTROLLED), and when it's _not_ present, both system-config-network and NM will assume they can control the interface. HOwever, when system-config-network does not find NM_CONTROLLED in the ifcfg file, it will add NM_CONTROLLED=no. Thus, the first time you save a config with system-config-network, it may disable NM from controlling the device.