"Working" means you can access the form, and it does not give a 404 error or other technical web failure. If you get a message saying to report to the immigration office to do the 90 day report in person, it means the system is working, but just not for you.
You can use one of the following three programs to submit a 90 day report:
Immigration web-portal [best option];
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Android eServices application;
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iPhone eServices application;
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If the 90 day online report system does not work, AND you’re between the due date and 15 days prior to the due date, AND you already filed one 90 day report in person, there are some troubleshooting techniques you can use to try and get the system to work for you.
1. Make sure you’re filling in the information, and only the information, requested.
2. Make sure you are keying in the date and month correctly
3. Turn off any pop-up blockers
4. Turn off any auto-translate
5. Turn off any VPNs (Virtual Private Networks) that you may be using - including any data saving applications
6. If you’re using one of the applications, use the web-based system
7. If you’re using the web based system, try using a different browser and clear the cache.
8. Make sure your web browser isn’t automatically filling in the forms.
9. Make sure you aren’t confusing “O”(Oh) with “0” (zero)
10. If you’re keying your date manually, try using the drop-down date selection box
If the system still doesn’t work, then you may need to file it in person.