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Copy file name to clipboardExpand all lines: content/Arduino Cloud/Arduino IoT Cloud/If-your-device-is-offline-in-Arduino-Cloud.md
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-_Exception:_ The Arduino Opta has no power LED, so it may be powered even if no LEDs are lit.
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- If device is connecting via Wi-Fi, ensure that your Wi-Fi router or access point is turned on and accessible.
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## Verify and reupload the Thing sketch
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## Verify network credentials and reupload the Thing sketch
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The sketch the device is running needs to be configured for Arduino Cloud. This happens automatically when you add and use your device with Arduino Cloud. If a different sketch is uploaded to the device, it will not connect to Arduino Cloud.
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You can ensure that your device is running the right sketch by reuploading the Cloud sketch from the Thing:
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1. Go to the [device tab](https://app.arduino.cc/devices) and select your device.
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1. In the **Network** section, select the network name or type to configure the credentials.
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- If prompted, create or associated an Thing to your device.
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1. Make sure that network credentials are correct. If you're unsure, try connecting to the network with a different device, like a smartphone or laptop.
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1. Select **Go to sketch** and upload the sketch to your device.
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1. Find the **Network** section on the device page:
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- If a network has been configured, it will display the network **name**.
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- If a network has **not** been configured, it will display the network **type**.
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1. Select the network name or type to configure the credentials.
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1. If prompted, create or associate an Thing to your device.
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1. If prompted, select an update method and connect your board.
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1. Configure your network credentials:
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-_Wi-Fi:_ Enter your Wi-Fi name (SSID) and password (encryption key).
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-_ESP32/ESP8266:_ Use the secret key that was provided when adding the device. If you don't know your secret key, [delete your device and add it again](#delete-the-device) to get a new key.
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-_Arduino device with LoRa®:_ The credentials are added automatically when you configure your device. To reset the credentials, [delete your device and add it again](#delete-the-device).
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1. One of the following will happen:
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- The network credentials will immediately be updated and you'll return to the device page.
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- A manual sketch upload will be required to update the credentials.
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If prompted, upload the sketch to update the network credentials on your device.
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> [!NOTE]
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> Make sure the name (also called _SSID_) and password (also called _encryption key_ or just _key_) are correct. The password can be revealed by clicking the eye symbol. If you don't know your network name or password, contact your network administrator or the manufacturer of your Wi-Fi access point. If your device has a secret key, make sure it's entered correctly (if you're unsure, remove and re-add the device to generate a new key).
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> Make sure the name (also called _SSID_) and password (also called _encryption key_ or just _key_) are correct. The password can be revealed by clicking the eye symbol. If you don't know your network name or password, contact your network administrator or the manufacturer of your Wi-Fi access point. If your device has a secret key, make sure it's entered correctly (if you're unsure, [remove and re-add the device](#delete-the-device) to generate a new key).
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