Troubleshooting
Check that correct hardware and port are used when uploading the sketch
Potential Reasons:
- Wrong email address
- The password is incorrect
- The user with the specified email address is not registered in the system
Check that your device connects to 2.4 WiFi network
Solution:
- Specify correct email address
- Be sure to type the correct password
- Reset password
- Check the specified email inbox to be sure it's registered in the system
- Register with a different email address
Potential Reasons:
- You entered an incorrect email address
- The email got into the SPAM folder
- Email server issues
Solution:
- Specify correct email address
- Check your SPAM folder
- Contact you mail server administrator
Potential Reasons:
- You do not have an Internet connection
- The server is rebooting
- Intermediate providers issues
Solution:
- Check your Internet connection
- You should wait for a while to reboot the server
- Run traceroute command in your OS terminal, contact your ISP and provide them with this data
Potential Reasons:
- Connectivity issues
- Incorrect SSID or password in the sketch code
- SSID or password are not specified in the sketch code
- Old version of library or even beta version is used
- Outdated ESP core version
Solution:
- Check if the device is powered on
- Check your Internet connection between the device and Blynk.Cloud (mind Wi-Fi signal strength and distance)
- Be sure to use the latest version of library, otherwise re-flash and launch Device Reprovision process
- Check your ESP core version is up to date, otherwise re-flash and launch Device Reprovision process
Checked all of the above and are still unsure what’s going wrong? Contact our technical support team for prompt help (available with PRO plan).