Use strong passwords for your authentication method. For example, the Web page
https://www.grc.com/passwords.htm generates random 64 character pass-
words.
20.7 Troubleshooting
If your WLAN card is not automatically detected, check whether it is supported by
openSUSE. A list of supported WLAN network cards is available under http://en
.opensuse.org/HCL:Network_(Wireless). If your card is not supported, it
may be possible to make it work using the Microsoft Windows drivers with Ndiswrapper.
Please refer to http://en.opensuse.org/SDB:Ndiswrapper for detailed
information.
If your WLAN card fails to respond, check the following prerequisites:
1.
Do you know the device name of the WLAN card? Usually it is wlan0. Check with
the tool ifconfig.
2.
Have you checked your needed rmware? Refer to /usr/share/doc/
packages/wireless-tools/README.firmware for more information.
3. Is the ESSID of your router broadcasted and visible (not hidden)?
20.7.1 Check the Network Status
The command iwconfig can give you important information about your wireless
connection. For example, the following line displays the ESSID, the wireless mode,
frequency, if you signal is encrypted, the link quality, and much more:
iwconfig wlan0
wlan0 IEEE 802.11abg ESSID:"guest"
Mode:Managed Frequency:5.22GHz Access Point: 00:11:22:33:44:55
Bit Rate:54 Mb/s Tx-Power=13 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:62/92 Signal level:-48 dBm Noise level:-127 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:10 Invalid misc:0 Missed beacon:0
Wireless LAN 375
