sLAN_all-PoE_UserManual_Eng_DM v1.0.1

sLAN/all-PoE User Manual
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7. Trouble Shooting
This part suggests solutions to various problems that may arise when using the equipment.
Installation
 If you cannot access the equipment connected via sLAN/all PoE, it is recommended to check the network
connection and cables first.
 Ensure all connections are properly made(Ethernet, DB9 connector, serial cable and so on).
 Check both the IP address and port number are entered correctly.
 If you are using a hub, try connecting the sLAN/all PoE to another port to verify that the hub’s port is properly
operating.
Network Settings
 When using TCP/IP, check that your computer and sLAN/all PoE is on the same network. Check
connection status with sLAN/all PoE via ping command on PC. The IP address of sLAN/all PoE must exist
on the same logical network as the host PC. For example, if PC has an IP address of 192.189.207.3 and
the subnet mask is set to 255.255.255.0, the IP address of sLAN/all PoE must be set to 182.189.207.x (x
is an integer from 1 to 254). Also, make sure that the default gateway address settings are also correct.
 If sLAN/all PoE is set to be automatically assigned an IP address through DHCP, the IP address of the
sLAN/all PoE may not fixed and changed. If you set DHCP server to assign permanent IP to sLAN/all PoE
or set static IP address assignment in sLAN/all PoE, the address will be fixed.
 Sometimes problem may occur due to incorrect or overlapping IPs. Check that the IP address is properly
assigned to the sLAN/all PoE, and that no other equipment on the network has the IP assigned. IP conflict
is the most common issue in TCP/IP connection problems. If the IP address is not correct, it is likely to be
a problem with the connection of the equipment.
 Check that your computer and sLAN/all PoE use the same subnet mask. For example, if sLAN/all PoE
uses a subnet mask of 255.255.255.0, your PC must use the same subnet mask. Or check that the default
gateway is correctly set.
 If an invalid IP address is assigned, check if DHCP server has not assigned an invalid address to the
sLAN/all PoE.
Windows O/S
 If the target equipment is not properly connected on Windows O/S, check the connection status via the
command prompt with the command PING x.x.x.x (x.x.x.x. is the IP address of the sLAN/all PoE). If the
ping is not working properly, you cannot access the serial equipment.
 If you encounter problems when using the COM Redirector(Emulator) function, check if the correct virtual
port is being used when the application is running. Verify that you have correctly specified it as a virtual
port in the COM port settings of application.