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Step #2: Check your firewall settings

Step #2: Check your firewall settings

    The Custom Attribute Store must be able to communicate with LastPass APIs.

    This means that the AD FS server(s) must be able to reach *
    Open a web browser on your AD FS server(s) and navigate to If it is not reachable, you must allowlist the * domain on your firewall.
    Note:  If your environment is an AD FS server farm with primary and secondary nodes, please ensure that the * domain is allowlisted on all machines.