Revision history [back]

If Google Colab indicates that the runtime is disconnected, it means that the connection between the Colab notebook and the virtual machine running it has been lost. This can happen due to a few reasons, such as network connectivity issues, long periods of inactivity, or limited resources.

To resolve the issue, you can try the following: 1. Refresh the browser page to see if the connection is automatically restored. 2. Navigate to the Runtime menu and click on "Reconnect" to manually reconnect the runtime. 3. Check your internet connectivity and ensure that you have a stable connection. 4. Close down some other tabs or applications that may be using up your bandwidth, causing the runtime to disconnect. 5. Sometimes, if the runtime has been inactive for too long, it may be terminated. In this case, you will have to start a new runtime and run your dataset from the beginning.

If the issue persists, you may want to contact Google support for further assistance.