How can I successfully use the online 90-day reporting system for Thai immigration?

The online 90-day reporting system for Thai immigration has experienced uptime and downtime. Users are encouraged to complete reports by the morning when it's active. If the system shows an error or is down again, it may be an issue with security prompts in browsers like Firefox. Users should be aware that reports can only be submitted within a specific 15 to 7 days before the due date and that only required fields marked with red asterisks need to be filled out. If an error indicates to contact immigration, the online submission cannot be completed at that time.