Failed to connect to VMware Lookup Service during Web Client Login

At least since vSphere 5.1, a clean DNS and SSL setup prevents from several errors. I've often seen the vCenter Server Appliance failing with the following error message after trying to log in to the vSphere Web Client:

Failed to connect to VMware Lookup Service https://[VCENTER]:7444/lookupservice/sdk - SSL certificate verification failed.

failed-to-connect-to-vmware-lookup-service

There is a option in the appliance configuration that solves the problem quickly:

  1. Open vCenter Servers Configuration Website (https://[VCENTER]:5480)
  2. Login as root (Default password: vmware)
  3. Open Admin Tab
    vcsa-admin-page
  4. Activate Certificate regeneration enabled
  5. Click Submit
    certificate-regeneration-enabled
  6. Reboot vCenter Server Appliance (System -> Reboot)

A new certificate is now generated. When connecting to the vCenter the next time you will get an error message stating that the security certificate has been changed. Ignore that message, it just happens one time (Web-Client and vSphere Client).

Leave a Comment

NOTE - You can use these HTML tags and attributes:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>