Use this information to help solve problems connecting
to your CMM.
If you are unable to establish a connection
to your CMM,
check the following:
- Make sure that the CMM port
you are trying to access, the remote management and console (Ethernet)
port or the serial port, is correctly cabled (see Cabling the CMM).
- To test a remote management and console (Ethernet) port connection,
you can ping the IP address of the CMM.
- If you are unable to connect to your CMM via
the remote management and console (Ethernet) port, connect to the CMM serial
port and verify that the network configuration is correct by using
the CMM CLI.
See Serial cable connection and Serial connection for information about connecting
to and using the CMM serial
port. See Using the Lenovo Chassis Management Module 2 CLI for information about the CMM CLI.
- See External authentication of certificates for information about authentication
of certificates.
If a screen displays during connection
with a message such as "The security certificate presented by this
website was issued for a different website address" or "The certificate
is only valid for the following names," it might mean that you
are accessing the website using a host name that is not listed in
the certificate. Try to access the website using its IP address or,
if there are no other certificate error messages on the page and you
are confident that you are not experiencing an attack, select the
button or link and continue to the website.
- If you are unable to connect to your CMM from
all user accounts because you have forgotten the account IDs and passwords,
you must restore the CMM to
the manufacturing default configuration (see Restoring the CMM manufacturing default configuration for information).
- If you are unable to connect to the CMM from
a single user account because it has been locked, you can unlock it
using the users -unlock -n user_name command
(where user_name is the user account ID). See users command for information about command
use.
- If your CMM is
managed by the optional Lenovo XClarity Administrator or Flex System Manager management
node and you are unable to connect to the CMM from
a user account because it has been locked, you can unlock it through
the management software. For information about using
the Lenovo XClarity Administrator,
see Lenovo XClarity Administrator information page. See CMM access
problems in Flex System Manager for information
about Flex System Manager command
use.