WiFi not working

[Dan Williams]

On Sat, 2016-04-02 at 19:30 +0530, Johncy Bennette wrote:
> Hi,
>     I am using wpa_supplicant 2.5_devel version. I am using
> dbus+wpa_supplicant to connect to wireless network. I am doing kind
> of
> repeated tests like, disconnect/connect to wifi, power off, scan. At
> one point the scan list is empty. The connect to WiFi fails. Until I
> reset couldn't recover from that condition. I have captured the
> wpa_supplicant logs with -ddd option
> 
> Finding the difference between working and non-working logs show the
> below lines are not present in the non-working log mainly.

Yeah, your driver (ti wl18xx) is simply not returning an BSSes for any
of the scans.  That's a driver problem, unless it really can't see any
BSSes.  Try rmmod-ing the driver module, then modprobing it again, and
if that fixes things (because it re-inits the hardware) then the
problem is likely in the kernel driver.

Dan

> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: wlan0:
> Added interface wlan0
> 
> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: wlan0:
> State: INACTIVE -> DISCONNECTED
> 
> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: nl80211:
> Set wlan0 operstate 0->0 (DORMANT)
> 
> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: netlink:
> Operstate: ifindex=6 linkmode=-1 (no change), operstate=5
> (IF_OPER_DORMANT)
> 
> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: nl80211:
> Create interface iftype 10 (P2P_DEVICE)
> 
> Mar 31 20:18:00 MyDevice daemon.debug wpa_supplicant[646]: nl80211:
> New P2P Device interface p2p-dev-wlan0 (0x2) created
> 
> wpa_cli -iwlan0 scan gave OK
> wpa_cli -iwlan0 scan_results didnt give any results and showed only
> bssid / frequency / signal level / flags / ssid
> 
> iw dev wlan0 scan didnt give any results
> 
> wpa_cli -iwlan0 status showed,
> wpa_state=SCANNING
> p2p_device_address=20:c3:8f:8d:7f:12
> address=20:c3:8f:8d:7f:11
> uuid=4b03ecb5-33d1-5143-81b6-632370f0174b
> 
> Attached both working and notworking logs.
> 
> Regards,
> Johncy.
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