Samsung Q1B - Manual (Page 118)

Questions and Answers 118
● Check the AP settings.
A1 Check if the surroundings are appropriate for a wireless LAN. A wireless LAN connection may
be limited by the surrounding environment and distance. Obstacles such as walls and door
mats affect the quality of the wireless LAN signal. You have to install an AP in a high, open
position far away from any other radio signal sources. If the AP is excessively far away, or is
installed at the end of a building and you are attempting to use the wireless LAN from the other
end, you may not be able to use the wireless communication normally because the signal is
blocked by obstacles between you and the AP (such as a wall).
A2 Check if the AP operates properly. If the AP is not operating properly, turn it off and on again
and try again.
A3 Check if the AP firmware is the latest version. (For more information on the AP firmware, ask
the AP manufacturer or your product provider.)
A4 Check if the AP is properly connected to the network. Connect the LAN cable from the AP to a
computer and check if the network is connected properly.
A5 Check the Network Key (Encryption Key) settings again.
If the automatic password converting function (passphrase function) is enabled and the wire-
less connection is normal but you cannot send data over the connection, please enter the Net-
work Key (Encryption Key) manually.
A6 Check the AP settings as follows.
If there are multiple APs running at the same time, check the channel setting of each AP. If
the interval between the channels of the APs is narrow, you may experience electromagnetic
interference. Set the channel numbers of the APs so that the internals between the channels
are maximized. (E.g., Ch1, Ch5, Ch9, Ch13)
If the SSID option is set to Hide, you will not be able to find the AP on your computer. It is
recommended unselecting the Hide option of the AP. SSID (Service Set ID) is a name used to
distinguish a wireless LAN from other wireless LANs.
It is recommended using Long Preamble. Preamble is a signal for data transmission synchro-
nization. Although some APs support Short Preamble, there might be a compatibility problem.
Because 'Fixed' channel selection is more stable then 'Auto' channel selection, 'Fixed' channel
selection is recommended. It is recommended not using the 'Block Any' and 'Any Connection
Block' functions. Although these functions block connections at the client side when the net-
work name is Any or Blank, it may cause a compatibility problem.
For more information on the AP settings, refer to the owner's manual supplied with the AP.
Q3 Although a connection has been established, I cannot connect to the Internet.
● Check the TCP/IP settings.
A If you cannot connect to the Internet but you are connected to an AP, check if the TCP/IP
settings are configured properly.
When you are not connected to an AP, an X mark appears over the 'Wireless Network Connec-
tions' (
) icon in the Taskbar. If you double-click the icon, the Search for Wireless Connec-
tions window appears. Reconnect to a wireless network referring to the descriptions of
Connecting to a Wireless LAN in the Using the Network section.
When you are connected to an AP, an X mark appears over the 'Wireless Network Connections'
(
) icon in the Taskbar. Double-click the icon and check if the IP address is properly allocat-
ed on the Support tab. If the IP address is not properly allocated, the IP address will be dis-
played as follows; (e.g. 169.254.xxx.xxx).