Wifi

Troubleshoot wifi

# Check device
lsusb                # if wifi usb device
lspci                # if wifi pci device

# Check if device has an interface
iwconfig

# Check status interfaces
ifconfig

Wifi is either controlled by NetworkManager or via the command line.

NetworkManager

Command file

• See file /etc/network/interfaces. See man page man interfaces
• For WPA, see file /etc/wpa_supplicant/wpa_supplicant.conf.

Miscellaneous

Wireless deauthentication code from [1]: About syslog wlan0: deauthenticated from 00:1d:7e:0c:24:5e (Reason: 14), see [2]: That means that the WPA encryption code is failing and the packet is corrupt. I would worry about that corrupt beacon from the AP. Troubleshooting WiFi (opensuse post) Getting info on WiFi (opensuse post)

3 Deauthenticated because sending station is leaving (or has left) IBSS or ESS. 14 MIC failure.

• See Common Issues