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Network connection problems

Use this information to solve network connection problems.

Table 1. Network connection problems and actions.

The network connection problems and actions table with one level of row and column headers.

  • Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
  • If an action step is preceded by (Trained technician only), that step must be performed only by a trained technician.
  • Go to the Support Web site at the Lenovo Support Portal to check for technical information, hints, tips, and new device drivers or to submit a request for information.
SymptomAction
The server will not connect to the network.
  1. If the network adapter is newly installed, verify that it is supported by the server (see the Lenovo ServerProven website).
  2. Verify the network adapter slot power state and configuration (see Using the Setup Utility).
  3. Check to make sure that the server is properly connected to the network and that there is no damage to the network cables.
  4. Check the firmware device driver.
  5. Check the Retain Tips for related issues on the Support Web site at the Lenovo Support Portal.
The server intermittently looses connection.
  1. Verify that the network router or switch is operating properly.
  2. Check to make sure that the server is properly connected to the network.
  3. Check the firmware device driver.
  4. Check the Retain Tips for related issues on the Support Web site at the Lenovo Support Portal.