If you receive the following error when trying install the web client on vCenter 5.1 you can reset the password.

Could not connect to vCenter Single Sign-On. Make sure that theLookup Service URL points correctly to the vCenter Single Sign

or an error stating the credentials are invalid do the following:

  1. Login as an administrator to the vCenter SSO server.
  2. Click Start > Run, type cmd, and click OK. The Command Prompt window opens.
  3. Navigate to the directory SSOInstallDirectory\utils. By default, the installation directory isC:\ProgramFiles\VMware\Infrastructure\SSOServer\utils.
  4. Run this command:rsautil reset-admin-password
  5. Enter the master password when prompted.

If resetting here gives you this error  ERROR: Key [com.rsa.db.msserverinstance] is not defined

do the following  and then repeat the above process to reset using a new password

  • Ensure that you are using a new password.
  • Update the com.rsa.db.msserverinstance property in the file for Single Sign On:
    1. Open the file using a text editor.Note: By default, the file is located at:
      • vCenter Server installed on Windows – C:\Program Files\VMware\Infrastructure\SSOServer\webapps\ims\WEB-INF\classes\
      • For vCenter Server Appliance 5.1 – /usr/lib/vmware-sso/webapps/ims/WEB-INF/classes
    2. Add this entry to the file:com.rsa.db.msserverinstance=instance

      Where instance is the RSA database name. The default instance name is:

      • vCenter Server installed on Windows – com.rsa.db.msserverinstance=RSA
      • vCenter Server Appliance 5.1 – com.rsa.db.msserverinstance=ssodb

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