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UPS Network Management Card 2 User’s Guide96
Troubleshooting
Management Card Access Problems
For problems that are not described here, see the troubleshooting flowcharts on the APC
Network Management Card Utility CD. Click the Troubleshooting link in the CD interface.
If the problem still persists, see “APC Worldwide Customer Support” on page 108.
Problem Solution
Unable to ping the
Management Card
If the Management Card’s Status LED is green, try to ping another node on
the same network segment as the Management Card. If that fails, it is not a
problem with the Management Card. If the Status LED is not green, or if the
ping test succeeds, perform the following checks:
• Verify that the Management Card is properly seated in the UPS.
• Verify all network connections.
• Verify the IP addresses of the Management Card and the NMS.
• If the NMS is on a different physical network (or subnetwork) from the
Management Card, verify the IP address of the default gateway (or router).
• Verify the number of subnet bits for the Management Card’s subnet mask.
Cannot allocate the
communications port through
a terminal program
Before you can use a terminal program to configure the Management Card,
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 Management Card may be creating a host key. The
Management Card can take up to one minute to create the host key, and
SSH is inaccessible for that time.
Cannot access the Web
interface
• 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 Management Card. SSL requires https, not
http, at the beginning of the URL.
• Verify that you can ping the Management Card.
• Verify that you are using a Web browser supported for the Management
Card. See “Supported Web browsers” on page 26.
• If the Management Card has just restarted and SSL security is being set up,
the Management Card may be generating a server certificate. The
Management Card can take up to one minute to create this certificate, and
the SSL server is not available during that time.