Network connection problems

Use this information to diagnose and resolve network connection errors.

IBM updates the support website with the latest tips and techniques that you can use to resolve any problems. Go to the BladeCenter support search website at to see if any service bulletins have been generated. In the Search field, type 7875, retain tip, and chassis.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. The blade server connects to the network by using shared BladeCenter unit resources. See the following table and Solving shared BladeCenter resource problems.

  • See Parts listing to determine which components are consumable, structural, or CRU parts.
  • If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained technician.
Symptom Action
One or more blade servers are unable to communicate with the network.
  1. Check the function of the shared BladeCenter unit resources. See Solving shared BladeCenter resource problems).
  2. Make sure that:
  3. (Trained technician only) Replace the system-board assembly. See Removing the system-board assembly and Installing the system-board assembly.