W I r e l e s s L A N U s e r ’ s G u i d e
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 | Possible Cause | Possible Solution |
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Unavailable | Incorrect network | Ad hoc connection: verify that the network names (SSID’s) and network |
network | name (SSID) or | keys (WEP) of all computers to be connected have been configured |
connection | network key | correctly. SSID’s and WEP key values must be identical on each machine. |
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| Access Point (Infrastructure) connection: set the network name (SSID) and |
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| network key to the same values as those of the access point. |
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| Set the Network Authentication value identically to that of the Access Point. |
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| Please consult your network administrator for this value, if necessary. |
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| Weak received signal | Ad hoc connection: Retry connection after shortening the distance to the |
| strength and/or link | destination computer or removing any obstacles for better sight. |
| quality | Access Point (Infrastructure) connection: Retry connection after shortening |
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| the distance to the access point or removing any obstacles for better sight. |
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| To check the wave condition, refer to the following page:· “Confirming the |
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| status of the radio” on page 97. |
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| The WLAN device | Check if the wireless switch is turned ON. Also verify “Disable Radio” is not |
| has been deactivated | checked in “Network setting” window. |
| or disabled |
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| The computer to be | Check if the computer to be connected is turned ON. |
| connected is turned |
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| off |
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| RF interference from | The use of identical or overlapping RF channels can cause interference with |
| Access Points or | the operation of the WLAN device. Change the channel of your Access Point |
| other wireless | to a channel that does not overlap with the interfering device. |
| networks |
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| Wireless network | |
| authentication has | Incorrectly configured security settings such as an incorrectly typed WEP |
| failed | key, a misconfigured LEAP username, or an incorrectly chosen authentica- |
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| tion method will cause the LAN device to associate but not authenticate to |
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| the wireless network. |
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| Incorrectly | Recheck the configuration of your network settings. |
| configured network | For the method of checking, refer to the following page:·“Connection to the |
| settings | |
| Network” on page 95. | |
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| Incorrect IP address | This only applies to networks using static IP addresses. Please contact your |
| configuration | network administrator for the correct settings. |
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