Public bug reported:
After having suspended my Samsung 350V5C S07 and re-activated it, it
fails to re-connect to the WiFi network. The syslog says:
Jan 20 10:10:02 wolowitz kernel: [ 3726.335745] ath: phy0: DMA failed to stop
in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Jan 20 10:10:02 wolowitz kernel: [ 3726.335746] ath: phy0: Could not stop RX,
we could be confusing the DMA engine when we start RX up
Jan 20 10:10:02 wolowitz kernel: [ 3726.395437] ath: phy0: Failed to stop TX
DMA, queues=0x10f!
Jan 20 10:10:02 wolowitz kernel: [ 3726.505585] ath: phy0: Chip reset failed
Jan 20 10:10:02 wolowitz kernel: [ 3726.505588] ath: phy0: Unable to reset
channel, reset status -22
Jan 20 10:10:02 wolowitz kernel: [ 3726.505591] ath: phy0: Unable to set channel
The above is repeated many times. Then, finally it says:
Jan 20 10:10:02 wolowitz NetworkManager[936]: <warn> Activation
(wlan0/wireless): association took too long.
Jan 20 10:10:02 wolowitz NetworkManager[936]: <info> (wlan0): device state
change: config -> failed (reason 'no-secrets') [50 120 7]
Jan 20 10:10:02 wolowitz NetworkManager[936]: <info> Marking connection
'guppyfan' invalid.
Jan 20 10:10:03 wolowitz NetworkManager[936]: <warn> Activation (wlan0) failed
for connection 'guppyfan'
Jan 20 10:10:03 wolowitz NetworkManager[936]: <warn> Couldn't disconnect
supplicant interface: This interface is not connected.
Jan 20 10:10:03 wolowitz NetworkManager[936]: <info> (wlan0): device state
change: failed -> disconnected (reason 'none') [120 30 0]
Jan 20 10:10:03 wolowitz NetworkManager[936]: <info> (wlan0): deactivating
device (reason 'none') [0]
Jan 20 10:10:03 wolowitz NetworkManager[936]: <warn> Couldn't disconnect
supplicant interface: This interface is not connected.
Jan 20 10:10:07 wolowitz NetworkManager[936]: <info> (wlan0): supplicant
interface state: scanning -> inactive
If I restart the computer, it works again.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1102007
Title:
WiFi re-connect fails
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