ERROR_LICENSE_QUOTA_EXCEEDED - 1395 (0x573)
The service being accessed is licensed for a particular number of connections. No more connections can be made to the service at this time because there are already as many connections as the service can accept.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_LICENSE_QUOTA_EXCEEDED indicates that a service or resource is licensed for a specific number of concurrent connections. When the maximum allowed number of connections has been reached, no additional connections can be established until existing ones are terminated or released.
Error Details
This error typically occurs in scenarios where services such as network protocols, database servers, or other connection-based applications enforce licensing limits on the number of simultaneous connections they will accept. The error is returned when an attempt to establish a new connection exceeds this predefined limit.
Usage Context
The context in which this error might be encountered includes:
- Network services that require licensing for concurrent user sessions.
- Database management systems with connection pooling and licensing constraints.
- Application servers or middleware components that manage connections to external resources.
Developer Interpretation
Developers should interpret this error as an indication that the maximum allowed number of connections has been reached. This can be due to various factors, such as reaching a licensing limit set by the service provider or exceeding internal connection limits imposed by the application itself. Developers may need to implement logic to handle this situation gracefully, possibly by retrying the operation after a delay or informing the user that they have exceeded their allowed connections.
Related Errors
ERROR_TOO_MANY_POSTS(1024) - Indicates an attempt to send too many messages in a short period of time.ERROR_CONNECTION_REFUSED- Occurs when a connection is refused by the server, which might be due to reaching a different kind of limit.
FAQ
Q: What does the error code 1395 mean?
A: The error code 1395, 'License Quota Exceeded', indicates that the service being accessed has reached its maximum allowed number of concurrent connections.
Q: How can I handle this error in my application?
A: You should implement retry logic or inform the user that they have exceeded their connection limit. Ensure your application handles this gracefully to avoid unexpected behavior.
Summary
The ERROR_LICENSE_QUOTA_EXCEEDED (1395) is a specific error code indicating that a service has reached its maximum allowed number of concurrent connections. Developers should be aware of the context in which this error might occur and implement appropriate handling mechanisms to manage connection limits effectively.