Cursor cannot be used anymore, and it prompts you that there are too many devices logged in. What should I do?

The immediate cause of the "too many devices logged in" error in Cursor is a policy enforcement by its authentication provider, which limits the number of active device sessions per account. This is a common security and licensing control for software-as-a-service applications, designed to prevent account sharing and unauthorized access. Your primary course of action is to systematically deactivate active sessions from devices you no longer use or recognize, thereby freeing up a slot for your current device. This is almost always managed through your account settings on Cursor's official website or via a dedicated account management portal, not within the application itself. You will need to log into this portal from a web browser, likely using the same credentials you use for Cursor, navigate to a section labeled "Sessions," "Devices," or "Security," and review the list of currently authorized devices. From there, you can selectively log out or remove older or unfamiliar devices.

The mechanism behind this error is session management. Each time you authenticate Cursor on a new computer, browser, or virtual environment, it creates a persistent session token. The provider maintains a count of these active tokens, and when you hit the predefined limit—often a number like five or ten—any attempt to create a new session is blocked until an existing one is revoked. This limit encompasses all installations, including those on work and personal machines, temporary cloud development environments, or even instances you may have forgotten after a system reformat. It is critical to understand that simply closing the application does not terminate the session; the token remains valid until it expires or is manually revoked. Therefore, the solution is not to reinstall the software repeatedly but to administratively clear these dormant sessions from the source.

In practical terms, you should first ensure you are attempting to access the correct account management page, which is typically linked from Cursor's official website under "Account" or "Profile." If you cannot locate this, consult Cursor's official documentation or support resources for direct guidance. After securing access to your current device by removing others, consider implementing practices to avoid recurrence. Be proactive about logging out of Cursor on devices you are retiring or no longer accessing regularly, especially shared or ephemeral machines like those in cloud IDEs. If you are part of a team or organization, verify whether your company uses a centralized license pool; in some cases, an administrator may need to adjust seat allocations or device limits. Should you find unfamiliar devices in your session list, immediately change your account password and enable two-factor authentication if available, as this could indicate compromised credentials.

The broader implication is that managing authorized devices is now a routine aspect of using modern, licensed development tools. This error serves as a forced audit point for your active development environments. If, after reviewing and pruning sessions, you continue to encounter the error, the issue may be a technical glitch in session tracking or a misconfigured organizational license. At that stage, your recourse is to contact Cursor's official support with specific details of your account and the steps you have already taken. They can verify your subscription tier's device limits, perform a manual reset of your sessions if necessary, and investigate any potential backend issues. There is no workaround within the application itself that bypasses this authentication layer, as it is a core enforcement of the service's terms.