The “API URL” must be configured the same at both ends, inside Atom and Pinegrow Editor.
Make sure you setup and use the same port. That should probably solve the connection issue!
3. Configure API url
In Atom go to pinegrow-atom settings and set the URL of the Pinegrow instance you wish to connect to. Note that every Pinegrow window has a separate API URL. Use Support → Show API url in Pinegrow to get the correct address.
