The app can't find my MyChron

Scanning finds nothing, or the download won't start? Work through this list — it resolves almost every case.

Checklist

1. Is the logger's Wi-Fi on? Turn the MyChron on and enable Wi-Fi on the device itself (see your MyChron manual for your model's menu).
2. Is your phone on the logger's network? Open your phone's Wi-Fi settings and join the network named AiM-…. Being near the logger isn't enough — the phone must join that network.
3. On iPhone, check Cellular Data. iOS can silently reroute the app's traffic to cellular even while you're still joined to AiM-… — with no prompt shown. If downloads fail or drop mid-session, turn Cellular Data off while connecting to the MyChron, then back on afterward. (This doesn't affect Android.) Also worth checking: some phones silently hop back to a known Wi-Fi network — confirm you're still on AiM-….
4. On iPhone, allow Local Network access. LapperSnapper asks the first time you scan. If you declined, iOS blocks the connection without saying so — turn it on in Settings → Privacy & Security → Local Network.
5. Stay close. The logger's Wi-Fi range is short; scan from beside the kart, not across the awning.
6. Rescan. Back in LapperSnapper: Import → MyChron → Scan for devices. If scanning still comes up empty, tap Connect manually — the logger's usual address is already filled in.
7. Restart both. Power-cycle the MyChron, toggle the phone's Wi-Fi off and on, and try once more.

Downloads that fail partway

Move closer and retry. The app keeps the sessions that did download, shows Downloaded X of Y — couldn't fetch the rest with the reason underneath, and leaves the failed sessions selected — tap Download to retry just those. If one session repeatedly fails to read, its file may be incomplete on the logger.

On a MyChron 6 updated in September 2026 or later, new sessions fail to import on older versions of LapperSnapper — update the app.

MyChron download only works in the iPhone and Android apps; the web app can't join a logger's Wi-Fi.

Still stuck? See Contact support — include your MyChron model, phone model, and the reason line if the app showed one.