APC AP9630 User's Guide download pdf (Page 79)

77UPS Network Management Card 2 User’s Guide

Troubleshooting

Network Management Card Access Problems

For problems that are not described here, see the troubleshooting flowcharts on the Network

Management Card Utility CD. Click the Troubleshooting link in the CD interface.

If the problem still persists, see

“APC Worldwide Customer Support”.

Problem Solution

Unable to ping the NMC

If the NMC’s Status LED is green, try to ping another node on the same

network segment as the NMC. If that does not work, it is not a problem with

the NMC. If the Status LED is not green, or if the ping test succeeds, perform

the following checks:

• Verify that the NMC is properly seated in the UPS.

• Verify all network connections.

• Verify the IP addresses of the NMC and the NMS.

• If the NMS is on a different physical network (or subnetwork) from the

NMC, verify the IP address of the default gateway (or router).

• Verify the number of subnet bits for the NMC’s subnet mask.

Cannot allocate the

communications port through a

terminal program

Before you can use a terminal program to configure the NMC, you must shut

down any application, service, or program using the communications port.

Cannot access the command

line interface through a serial

connection

Make sure that you did not change the baud rate. Try 2400, 9600, 19200, or

38400.

Cannot access the command

line interface remotely

• Make sure you are using the correct access method, Telnet or Secure SHell

(SSH). An Administrator can enable these access methods. By default,

Telnet is enabled. Enabling SSH automatically disables Telnet.

• For SSH, the NMC may be creating a host key. The NMC can take up to

one minute to create the host key, and SSH is inaccessible for that time.

Cannot access the user

interface (UI)

• Verify that HTTP or HTTPS access is enabled.

• Make sure you are specifying the correct URL — one that is consistent

with the security system used by the NMC. SSL requires https, not http, at

the beginning of the URL.

• Verify that you can ping the NMC.

• Verify that you are using a Web browser supported for the NMC. See

“APC Worldwide Customer Support”.

• If the NMC has just restarted and SSL security is being set up, the NMC

may be generating a server certificate. The NMC can take up to one minute

to create this certificate, and the SSL server is not available during that

time.

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APC AP9630 User's Guide Page 79

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