After applying the steps listed in the OC logon fails with all users ; Error - Invalid Credentials article, the WASP and spooler probes do not start (probes are reporting red status)
Generally, the issue may happen when you modify "log on as" property of a Nimsoft Watcher Service (you specify a user that the service should use to log on).
Release : UIM 20.x/ 23.4
The issue is caused by missing user rights to a Nimsoft installation Folder.
Make sure, that the user used for "log on as" configuration, has full control of the Nimsoft directory folder.
Once the user obtains full control permission to a Nimsoft folder, restart the robot and now both probes should start correctly.
NOTE: after modifying the user's membership, you need to log out and log back in, to reset the Kerberos ticket and let the new membership settings kick in.