Checkinera Login Error
you’ve installed Checkinera (iOS, Android, or Chrome desktop), entered your credentials, and it returns a login error instead of letting you in. The fix is almost always one of three things: URL format, API access key, or a maintenance-mode plugin blocking the REST endpoint.
Check 1: URL format
The URL you enter into Checkinera must include the protocol prefix:
- Correct:
https://www.your-domain.com - Correct:
http://www.your-domain.com(for local/staging only) - Wrong:
www.your-domain.com(no protocol) - Wrong:
your-domain.com/with trailing slash and no protocol
If you don’t know exactly what URL to enter, open WordPress admin → Tickera → Settings → API Access. The exact URL is displayed there. See API Access settings for the full screen reference.
Check 2: API key
The API Access tab also shows the API key Checkinera needs. Copy it without leading/trailing whitespace and paste exactly. Regenerating the key (button on the same screen) and re-pasting often clears subtle copy-paste issues.
Check 3: Maintenance-mode plugins
Plugins that gate your site behind a “coming soon” or maintenance page (SeedProd, WP Maintenance, Under Construction, etc.) intercept REST API requests too. Checkinera then can’t reach the authentication endpoint and reports a login error.
Fix: either disable the maintenance plugin while you’re working on check-in, or configure it to exclude the WordPress REST API (/wp-json/) from the maintenance wall. Most maintenance plugins have an “Exclude these paths” or “Allow REST API” toggle.
Check 4: REST API itself
If WordPress Site Health reports a REST API error, Checkinera can’t authenticate regardless of your other settings. See REST API error in Site Health for that fix.
Check 5: Security plugins
Wordfence, iThemes Security, and other firewalls sometimes flag the Checkinera authentication call as a brute-force login attempt and block the device’s IP. Check the firewall log; whitelist the IP of the device running Checkinera (your phone, tablet, or check-in laptop).
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