You encounter the following error message during the registration of your Remote Manager (TMRM):
The Trend Micro Worry-Free Remote Manager registration process has encountered an error. Your registration form has not been submitted. Please return to the registration page and submit your registration again. If you continue to experience problems, please contact firstname.lastname@example.org.
The issue occurs because the TMRM account name only accepts alphanumeric characters including "_" and "-". It does not accept any other characters such as period or comma.
To resolve the issue, update your username that follows the correct format.