> Problems with Wireless LAN Connection > When the Machine Cannot Connect to the Wireless LAN
42L8-07F

When the Machine Cannot Connect to the Wireless LAN

Use the following procedure to check the wireless LAN connection.
1
Check the status of your computer.
Have the settings of the computer and the wireless router or access point been completed?
Are the cables of the wireless router or access point (including the power cord and LAN cable) correctly plugged in?
Is the wireless router or access point turned on?
If the problem persists even after checking the above
Turn off the devices, and then turn them on again.
Wait for a while, and try again to connect to the network.
2
Check whether the machine is turned ON.
If the machine is turned ON, turn it OFF, and then turn it back ON.
3
Check the installation site of the machine and the wireless router or access point.
Is the machine too far from the wireless router or access point?
Are there any obstacles such as walls between the machine and the wireless router or access point?
Are there any appliances such as microwave ovens or digital cordless phones that emit radio waves near the machine?
4
Reconfigure the wireless LAN settings.
NOTE
If the wireless router or access point is set as described below, configure the wireless LAN connection settings with manual entry.  
The stealth mode*1 is activated.
ANY connection refusal*2 is activated.
The WEP key that was automatically generated (hexadecimal) is selected.
*1A function that disables auto-detection of the wireless router or access point SSID on other devices.
*2A function in which the wireless router or access point refuses the connection if the SSID on the device to be connected is set to "ANY" or is blank.
If the wireless router or access point is set as described below, change the settings of the router.
The MAC address of the machine and computer is rejected by the MAC address packet filtering function*3.
When only IEEE 802.11n is used for the wireless communication, WEP is selected or the WPA/WPA2 encryption method is set to TKIP.
*3A function to permit only communications with devices with specified MAC addresses and prohibit other communications.