I installed ndiswrapper. The card is able to search for APs that are in range.
There is a wireless AP called WirelessAP5-G. Its encryption setting is WEP128, and password is 26 2's (hex).
KEY=222......222 (26 2's)
Determine IP information for wlan0... failed; no link present. Check cable?
I also tried to change the content of key-wlan0 to "KEY=0x222...2" (all 2's are hex), but this time an error pops up saying "invalid configuration".
The output of "iwlist wlan0 key" also confuses me:
WEP is not listed here.