Robot Connection Fails Due To Invalid Grant Of Access Token

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Unable to access/log into Studio. When the UiPath Assistant is opened to see the Robot's connection status, error "Connection failed. Could not obtain access token. (invalid_grant)." is thrown.

Issue Description: When trying to authenticate Studio or the UiPath Assistant against Orchestrator, the connection fails and the error reads: "Connection failed. Could not obtain access token. (invalid_grant)"

For example:

Robot Disconnected.png


In Order to troubleshoot this, proceed as follows:

  1. Launch the UiPath Assistant, click on the user icon and choose Preferences > Orchestrator Settings. Click on "Sign out" and then "Sign in" again
  2. Make sure that as the connection type used are the supported methods, as documented in the "Connecting Robots to Orchestrator" page
  3. Launch a browser from the same computer and navigate to the Orchestrator URL. If the connection fails due to networking errors, engage the internal teams to solve it. If the connection fails due to Orchestrator errors, report it to UiPath Support
  4. Uninstall Studio and install it again. Make sure to follow the uninstall steps as documented in the "Modify or uninstall Studio" page and the installation page from "Install Studio" .