Troubleshooting

Upload (Android)

No connection. Check network and try again.

The phone couldn’t reach the upload API. Check mobile data or Wi‑Fi and retry.

File too large. Maximum size is 50 MB.

Shorten the capture session or split into multiple uploads.

The log file format may be corrupted or invalid.

Logs from older app builds can occasionally fail to parse. Re-run the capture on a current app build. If it persists, email team@yanl.net with the Reference and we will look.

Upload processed but tiles look empty

Very old logs from early app builds can show blank Serving Cell and Neighbours tiles. Re-capture on a current build if possible.
Aeroplane mode correctly blanks cellular charts; scrub the timeline to confirm coverage returned.
Stale readings are hidden on charts rather than shown as if they were current. See Data quality.

Server error. Try again in a moment.

Temporary server issue. Wait a minute and retry.

Web viewer

Invalid Reference or access code

Check you’re using the exact Reference from the upload screen
Access codes are case-sensitive
Anonymous uploads expire after 7 days, so the Reference may no longer exist

Still processing

Large uploads need a few seconds to parse. Refresh the page.

Ensure you’re on app.yanl.net . If sign-in still fails, clear the site’s cookies and try again, or email team@yanl.net.

Metrics look wrong

Threshold colours (Good / Marginal / Poor) match the Android app; see Metrics reference
Some tiles show status lists (SSID, cell PCI, iPerf progress) rather than a single number; that is by design
Cellular line charts gap when modem readings are stale or missing; a gap is honest, not broken
GPS map requires location permission during capture

Anything else

Email team@yanl.net. Answers come fastest with your Reference ID attached.