Network Connection Problems - Lenovo NeXtScale nx360 M5 Installation And Service Manual

• 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 Lenovo support website at http://www.lenovo.com/support to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Symptom
Wrong characters appear on
the screen.

Network connection problems

Use this information to solve network connection problems.
• 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 Lenovo support website at http://www.lenovo.com/support to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Symptom
Unable to wake the server
using the Wake on LAN feature.
Log in failed by using LDAP
account with SSL enabled.
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Lenovo NeXtScale nx360 M5 Installation and Service Guide
Action
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
d. (Trained technician only) System board.
1. If the wrong language is displayed, update the server firmware to the latest level
(see "Updating the firmware" on page 29) with the correct language.
2. Reseat the monitor cable.
3. Replace the components listed in step 2 one at a time, in the order shown,
restarting the server each time:
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
d. (Trained technician only) System board.
Action
1. If you are using the dual-port network adapter and the server is connected to
the network using Ethernet 5 connector, check the system-error log or IMM2
system event log (see "Event logs" on page 58), make sure:
a. Fan 3 is running in standby mode, if Emulex dual port 10GBase-T embedded
adapter is installed.
b. The room temperature is not too high (see "Features and specifications"
on page 5).
c. The air vents are not blocked.
d. The air baffle is installed securely.
2. Reseat the dual-port network adapter.
3. Turn off the server and disconnect it from the power source; then, wait 10
seconds before restarting the server.
4. If the problem still remains, replace the dual-port network adapter.
1. Make sure the license key is valid.
2. Generate a new license key and log in again.