Problems Authenticating To An Access Point; Problems Connecting To The Network; Reauthenticating After Leap Or Eap-Fast Times Out; Creating Strong Passwords - Cisco AIR-PCM352 - Aironet 350 Series 11Mbps Wireless LAN PC Card Adapter Installation And Configuration Manual

Troubleshooting the Client Adapter

Problems Authenticating to an Access Point

If your client adapter is a 40-bit card and EAP authentication is enabled, the adapter can associate to but
not authenticate to access points using 128-bit encryption. To authenticate to an access point using
128-bit encryption, you have two options:
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Problems Connecting to the Network

After you have installed the appropriate driver and client utilities, contact your IS department if you have
a problem connecting to the network. Proxy server, DNS or WINS, and further authentication
information might be needed to connect to the network.

Reauthenticating After LEAP or EAP-FAST Times Out

If your client adapter times out while trying to authenticate using LEAP or EAP-FAST, open WLM, enter
your LEAP or EAP-FAST credentials, and try again to authenticate.
If you use the same password for your laptop or PC as for your Windows CE device, your session
Note
may expire on your Windows CE device if you change the password on your laptop or PC. In this
event, simply open WLM, enter your new password, and try again to authenticate.

Creating Strong Passwords

Cisco recommends the use of strong passwords for LEAP authentication. Because strong passwords are
difficult to guess, they minimize the risk of successful attacks by rogue access points. Some
characteristics of strong passwords include:
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Some examples of strong passwords include:
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Note
Cisco Aironet 350 Series Wireless LAN Client Adapters Installation and Configuration Guide for Windows CE
9-4
Purchase a 128-bit client adapter. This is the most secure option.
Disable static WEP for the client adapter and configure the adapter and the access point to associate
to mixed cells. This option presents a security risk because your data is not encrypted as it is sent
over the RF network.
A minimum of 10 characters
A mixture of uppercase and lowercase letters
At least one numeric character or one non-alphanumeric character, such as !#@$%
No form of your username or user ID
A word that is not found in the dictionary (domestic or foreign)
cnw84FriDAY, which comes from "Cannot wait for Friday"
4yosc10cP!, which comes from "For your own safety, choose a 10-character password!"
Cisco recommends that you create your own strong passwords rather than use these sample
passwords.
Chapter 9 Troubleshooting
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