Fujitsu A3110 A3110 User's Guide - Page 102
Troubleshooting the WLAN
UPC - 611343053006
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falcon.book Page 92 Friday, August 4, 2006 11:12 AM LifeBook A3000 Series Notebook - Appendix Troubleshooting the WLAN TROUBLESHOOTING TABLE Causes and countermeasures for troubles you may encounter while using your wireless LAN are described in the following table. Problem Unavailable network connection Possible Cause Possible Solution Incorrect network name (SSID) or network key Weak received signal strength and/or link quality The WLAN device has been deactivated or disabled The computer to be connected is turned off RF interference from Access Points or other wireless networks Wireless network authentication has failed Incorrectly configured network settings Incorrect IP address configuration Ad hoc connection: verify that the network names (SSID's) and network keys (WEP) of all computers to be connected have been configured correctly. SSID's and WEP key values must be identical on each machine. Access Point (Infrastructure) connection: set the network name (SSID) and network key to the same values as those of the access point. Set the Network Authentication value identically to that of the Access Point. Please consult your network administrator for this value, if necessary. Ad hoc connection: Retry connection after shortening the distance to the destination computer or removing any obstacles for better sight. Access Point (Infrastructure) connection: Retry connection after shortening the distance to the access point or removing any obstacles for better sight. To check the wave condition, refer to the following page:· "Confirming the status of the radio" on page 91. Check if the wireless switch is turned ON. Also verify "Disable Radio" is not checked in "Network setting" window. Check if the computer to be connected is turned ON. The use of identical or overlapping RF channels can cause interference with the operation of the WLAN device. Change the channel of your Access Point to a channel that does not overlap with the interfering device. Re-check your Network Authentication, Encryption, and Security settings. Incorrectly configured security settings such as an incorrectly typed WEP key, a misconfigured LEAP username, or an incorrectly chosen authentication method will cause the LAN device to associate but not authenticate to the wireless network. Recheck the configuration of your network settings. For the method of checking, refer to the following page:·"Connection to the Network" on page 89. This only applies to networks using static IP addresses. Please contact your network administrator for the correct settings. 92