Samsung Q45c User Manual page 172

A5 Check the Network Key (Encryption Key) settings
again. If the automatic password converting function
(passphrase function) is enabled and the wireless
connection is normal but you cannot send data
over the connection, please enter the Network 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. (for example,
Ch1, Ch5, Ch9, Ch13) 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 synchronization.
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 network
name is Any or Blank, it may cause a compatibility
problem.
For more information on the AP settings, see the
owner's manual supplied with the AP.
Q
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 Connections'
icon ( ) in the Taskbar. If you double-click the
icon, the Search for Wireless Connections 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 allocated on
the Support tab. If the IP address is not properly
allocated, the IP address will be displayed as follows;
(for example, 169.254.xxx.xxx).
If your network does not support DHCP, you have
to manually configure an IP address by asking your
network administrator.
In addition, even if your network supports DHCP,
the Internet connection may not be available if the
DHCP server fails to allocate an IP address to your
computer.
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