Samsung UN46C6900VF Service Manual page 46

4. Troubleshooting
• Network Setup
Problem
How do I setup the network?
How do I check the network status?
In a network test over a wired connection,
the second items which include the IP
address, subnet, gateway and DNS server
fail.
In a network test over a wired connection,
the third item, gateway ping fails.
cannot connect to a wireless network.
When using a wireless network, the user's
wireless sharing device cannot connect to
the PBC (WPS).
The auto-configuring sharing device cannot
be connected to automatically through a
wireless dongle.
(Here, the user's sharing device must
support auto-configuration.)
Cannot connect to a wireless network (2) or
AP.
4-6
• Click the [Menu] button and open [Setup] to select [Network].
Configure wired or wireless network settings.
For details, please refer to the IB.
• Select [Menu]  [Setup]  [Network] and run [Network Test] to see test results and
check the network status.
• If the IP address, subnet mask and gateway address were typed in manually,
check that valid values were entered.
(For example, 0.0.0.0 is not valid for an IP address, subnet mask or gateway
address.)
If the IP address the user entered in is invalid, change it to a valid IP address.
1. Check that the network cable is connected to the TV correctly.
2. If the TV is connected correctly, check whether the IP address is automatic or
manual.
3. If the IP is automatic and connected to a sharing device, check the settings of the
sharing device (AP) that is using a cable connection, or consult the corresponding
Internet service provider.
4. If the IP is manual, check if the IP address is entered correctly.
(Here, the user should confirm if the manual IP address entered in is valid.)
1. If an encryption key must be entered in to connect to a sharing device, please
check that the correct password set for the sharing device is entered.
2. Search surrounding sharing devices to see if there is a sharing device with the
same SSID by selecting [Wireless Network Setup] and [Select Network].
If there is a sharing device with the same SSID, try to connect to this device.
3. If the IP address is set to automatic and you cannot connect to the sharing
device using option 1 or 2, check the settings of the sharing device to see if the
DHCP server function on the sharing device is enabled. If disabled, activate the
function. (For details on how to set up the sharing device, see the manual for the
corresponding sharing device.)
4. If you still cannot connect to the sharing device after confirming options 1, 2 and 3,
reset the sharing device and try again.
1. Check if the sharing device of the user supports WPS.
(Refer to the manual of the sharing device.)
2. Check if the user pressed the PBC button on the sharing device.
3. If there is another sharing device with WPS running nearby, a connection cannot
be made. Please retry after 2 minutes.
4. Reset the sharing device and retry.
5. If the sharing device of the user is not Wi-Fi certified, it may not be able to connect
using WPS.
1. Check if the sharing device of the user supports auto configuration.
(For a list of sharing devices, refer to the IB or website.)
2. If the sharing device of the user supports auto configuration, place the sharing
device as close as possible to the wireless dongle on the TV and try to re-establish
the connection. (Must be placed close to the TV to establish a connection.)
• There could be several causes of the connection failure. Check the AP settings to
see if the following condition is found.
• The Pure high-Throughput 802.11n mode (or Greenfield 802.11n mode) is selected
and the Encryption type is set to WEP, TKIP or TKIP-AES.
• Under the conditions stated above, Samsung TVs will not support a connection in
compliance with new Wi-Fi certification specifications. This is intended to maximize
the performance of the AP, TV and TV network.
To connect to the AP, set the Encryption type to AES. If Pure High-Throughput
802.11n mode (or Greenfield 802.11n mode) is selected and the Encryption type
is set to AES, your Samsung TV will connect to the AP providing you with optimum
performance.
Possible Solution