Why is there a mismatch of SE check-ins from what I counted as compared to the counts shown in the SafeEntry (Business) webpage in the past 15 minutes?

Related articles

• SafeEntry Gateway - Overview
• Why is the SEGW still not lighting up and beeping after I remove the casing from the mobile phone and ensure that the application is updated to the latest version?
• What equipment do I need to set it up? Can I power the SEGW with the USB cord from my laptop? Does the SEGW take up a lot of electricity?
• How do I set up the SEGW device after I receive it?
• What kind of devices can I use to tap on the SEGW?