Troubleshooting Without Diagnostics
Solving Network Problems
These guidelines do not discuss the process of debugging the network cabling.
Solving Network Problems
Problem | Cause | Solution |
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Use the Network control application | ||
not functioning. | enabled. | to enable |
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Network driver does | Network controller is | Run Computer Setup and enable |
not detect network | disabled. | network controller. |
controller. |
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| Incorrect network driver. | Check the network controller |
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| documentation for the correct driver |
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| or obtain the latest driver from the |
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| manufacturer’s Web site. |
Network status link light does not turn on or it never flashes.
✎The network status light should flash when there is network activity.
No active network is | Check cabling and network |
detected. | equipment for proper connection. |
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Network controller is not | Use the Network control application |
set up properly. | to verify that the device is working |
| properly. |
| Network driver is not | Reinstall network drivers. |
| properly loaded. |
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| System cannot autosense | Disable |
| the network. | and force the system into the correct |
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| operating mode. |
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Diagnostics reports a | The cable is not securely | Ensure that both ends of the data |
failure. | connected. | cable are securely connected. |
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| The cable is attached to | Ensure that the cable is attached to |
| the incorrect connector. | the correct connector. |
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| There is a problem with | Ensure that the cable and device at |
| the cable or a device at | the other end are operating |
| the other end of the cable. | correctly. |
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| Network controller | Under the Computer Setup |
| interrupt is shared with | Advanced menu, change the |
| an expansion board. | resource settings for the board. |
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| The network controller | Replace the NIC or replace the |
| is defective. | system board if the NIC is |
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| embedded. |
Diagnostics passes, but | Network drivers are |
the computer does not | not loaded, or driver |
communicate with the | parameters do not match |
network. | current configuration. |
1.Make sure the network drivers are loaded and that the driver parameters match the configuration of the network controller.
2.Make sure the correct network client and protocol is installed.
Service Reference Guide |