The return code for the e2e scripts is returned as -5 by the probe.
A return code of -5 means "Page has not finished to load within the timeout? although the script may be visible as running successfully when inspecting the server.
Considerations Before Making Changes
1. Verify that there's currently only one user logged on
2. Verify that there's only one e2e_starter.exe running
When e2e_appmon starts, it sets a registry key for all users which makes e2e_starter.exe run on every login. e2e_starter should close when it detects that there's already an e2e_starter running, but in some cases, this check may fail - this will mostly cause profiles to be run on interactive session (or in parallel). Logs of interest would be the e2e_starter.log found in the probe directory.
Customer temporary workaround was to deselect Alarm on start errors.