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Troubleshooting: WiFi Issues

Can't connect to the OnSpeed WiFi network, or the web pages aren't loading.

Can't See the "OnSpeed" Network

Controller Not Powered

The WiFi AP takes ~10 seconds after power-on to start. Verify:

  • Power is connected and the circuit breaker is on
  • The heartbeat LED is blinking (confirms the controller is running)

Too Far Away

The ESP32-S3 WiFi has limited range — typically 10–30 feet in open air, less through aircraft structure (metal fuselage, instrument panel).

  • Move your device closer to the controller
  • Try from inside the cockpit if the controller is behind the panel

WiFi Interference

If you're at an airport or hangar with many WiFi networks, interference can make the OnSpeed AP hard to find.

  • Try scanning for networks multiple times
  • Make sure you're looking for OnSpeed (exact spelling, capital O and S)

Can't Connect (Wrong Password)

The default WiFi credentials are:

  • SSID: OnSpeed
  • Password: angleofattack

The password is case-sensitive and all lowercase.

Connected But Pages Won't Load

Try the IP Address

If http://onspeed.local doesn't work, try the direct IP:

http://192.168.0.1

The mDNS name doesn't work on all devices (especially older Android devices).

Browser Caching

If you recently updated firmware, your browser may be serving cached old pages:

  • Try a hard refresh (Ctrl+Shift+R or Cmd+Shift+R)
  • Try an incognito/private browsing window
  • Clear your browser cache for the OnSpeed IP

Too Many Connections

The ESP32's web server can handle a limited number of simultaneous connections. If you have multiple devices connected, try disconnecting all but one.

Pages Load Slowly

The ESP32 serves pages over WiFi with limited bandwidth. Large pages (especially the calibration wizard with its JavaScript libraries) may take several seconds to load.

  • Be patient — wait for the page to fully load before interacting
  • Stay close to the controller (stronger signal = faster transfer)
  • Close other browser tabs/apps using the OnSpeed WiFi

WiFi Reflash

If the firmware is corrupted and you can't access the web interface, you can reflash firmware via:

  1. USB serial — connect a USB cable and use esptool to flash a new firmware binary
  2. OTA over WiFi — if the WiFi AP is still working, navigate to /upgrade and upload a new firmware binary

See Flashing Firmware for USB-based recovery.