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NetBIOS over IP Troubleshooting
WorkCentre 7425/7428/7435
System Administrator Guide
195
NetBIOS over IP Troubleshooting
Use the following check list to troubleshoot your network communication problem.
Check Physical Media and Network Interface Cards
1. Verify that the printer is powered On.
2. Verify that the printer and Computer are using the correct cabling to communicate over the
network. Use category 3 UTP patch (not crossover) cable for 10 Base T communications, category 5
UTP patch (not crossover) cable for 10 Base T / 100 Base TX communications, and Token Ring
cabling for Token Ring networks.
3. Verify that the cable at both the printer and Computer is fully plugged into the Network Interface
Card (NIC). Check the light, which is typically a green LED, to make sure that it is lit. Typically, but
not always, a second light on the Network Interface Card will be intermittently flashing, indicating
the presence of network traffic. If neither of these lights is lit, there is a problem with the NIC.
At the Printer
1. Print a Configuration Report. On the Configuration Report, verify that SMB is enabled. For more
information, see Microsoft (NetBIOS over IP) Networks on page 52.
2. On the Configuration Report, note that the default name of the printer's workgroup is Workgroup
and that the printer has a unique SMB Host Name. To modify the printer's Workgroup or SMB Host
Name, if required, use your computer's Web browser to access the CentreWare Internet Services.
For more informtion, see Microsoft (NetBIOS over IP) Networks on page 52.
3. On the Configuration Report, under the TCP/IP data label, note what method the printer is using to
acquire its TCP/IP addresses. If the method shown is STATIC, make sure that the printer has a valid
IP address, Subnet Mask, and Gateway address for the network.
4. On the Configuration Report, verify that DNS is enabled. The use of Naming Servers is REQUIRED
to resolve NetBIOS device names to IP addresses for packet routing over the TCP/IP network. If in
doubt as to whether DNS and WINS are enabled, see Microsoft (NetBIOS over IP) Networks on
page 52.
Warning: If the printer is not informed of the addresses of the DNS/WINS Servers, you may not be
able to see or use the printer's NetBIOS name on the network. Make sure that the printer is informed of
the addresses of the DNS/WINS Servers, using the instructions supplied in the above mentioned
procedures.
5. Under the CentreWare Internet Services data label, verify that this feature is Enabled. You must use
this tool at your computer if you need to change the printer's Workgroup name, the SMB Host
Name, the TCP/IP (internet) Host Name, or DNS settings. Note that when using DNS to resolve
host names to IP addresses, the NetBIOS name (SMB Host) and the TCP/IP Host Name must be
the same.