Troubleshooting

I Can’t Sign Up or Log In

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

No Email Received

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

No Connection to Cloud Server

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

Device is Offline

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• Outdated ESP core version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).