Resolving CMM connection problems

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 CMM Command-Line Interface Reference Guide 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 an 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 Flex System Manager management software web interface. See CMM access problems for information about command use.