OM-WEB Series User's Guide
Ethernet Troubleshooting
28
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If the
LINK/ACTIVITY
LED is not blinking, there are two possibilities:
Your computer is not transmitting — verify that your TCP/IP settings are correct, and that you are
using a valid IP address for both your computer and the device. Perform the procedure listed in
the network settings on the computer TCP/IP settings
The OM-WEB Series device is not receiving — contact Omega Engineering technical support. Refer
to
on page 30 for contact information.
Check the network settings on the computer
If the
LINK/ACTIVITY
LED is not flashing, verify that your TCP/IP settings are correct, and that you are using a
valid IP address for both your computer and the OM-WEB Series device. Use the
ipconfig
utility to return the
TCP/IP settings on your computer.
1.
Open a DOS Command Prompt window from your computer.
2.
Enter
ipconfig
and press the
Return
key. Your computer will display all TCP/IP network configuration
values currently set on the computer. An example is shown here.
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If the IP Address or Subnet Mask information are all 0’s, or if the first three sets (octets) of numbers in
either the IP address or Subnet Mask do not match the device's network settings, then the computer
will be unable to communicate with the OM-WEB Series device. Contact your network administrator
or computer professional.
Check whether DHCP is enabled on the network server
You can determine whether DHCP is enabled on the network server — open a DOS Command Prompt and
enter
ipconfig /all
. Your computer will display additional TCP/IP information, including the status of
DHCP on the network server.
Contact your network administrator regarding network settings
Changes to network configuration should only be performed by your network administrator or computer
professional.
Verify that the computer is connected to the network
You can ping (Packet InterNet Groper) the computer to verify that it is connecting to your network. Ping is a
diagnostic utility used to send a request to a device. The device then returns a response.
Enter
ping
followed by the IP address of the computer. Using the address returned in the example above
with ipconfig, enter
ping
127.0.0.01
and press the
Return
key.
This address tells the computer to test its network setup.
If your computer is connected to the network, a message similar to the one shown here is returned.
