RPC_S_NO_MORE_BINDINGS - 1806 (0x70E)
There are no more bindings.
Updated: Feb 21, 2026
Introduction
The RPC_S_NO_MORE_BINDINGS error code (1806, 0x70E) is a specific return value from the Windows Remote Procedure Call (RPC) API. This article provides an in-depth explanation of this error and its implications for developers.
Technical Meaning
When the RPC_S_NO_MORE_BINDINGS error is returned, it signifies that there are no more available bindings to complete a remote procedure call operation. A binding in RPC context refers to the association between a client and server endpoint, which includes information such as the protocol used, the address of the server, and other necessary parameters.
Error Details
This error typically occurs when an application attempts to establish or re-establish a connection with a remote service but finds that all possible bindings have been exhausted. This can happen due to various reasons, including resource limitations on either the client or server side, or misconfiguration of the RPC environment.
Usage Context
The RPC_S_NO_MORE_BINDINGS error is commonly encountered in scenarios where an application needs to communicate with a remote service over a network using the RPC protocol. It can be returned by functions such as RpcBindingCreateEx, which attempts to create a new binding for an RPC operation.
Developer Interpretation
Upon receiving this error, developers should consider several potential issues that might have led to the condition:
- Resource Limits: The system may have reached its maximum number of allowed bindings. This can be due to system configuration or limitations imposed by the operating environment.
- Configuration Issues: Incorrectly configured RPC settings on either the client or server side could result in insufficient available bindings.
- Network Constraints: Network configurations that limit the number of simultaneous connections might also contribute to this error.
Related Errors
RPC_S_SERVER_UNAVAILABLE: Indicates that the remote service is not available.RPC_S_CALL_FAILED: A generic failure occurred during the RPC call, which could include issues with bindings.ERROR_NO_SYSTEM_RESOURCES: The system has run out of resources to allocate for the operation.
FAQ
Q: What does the RPC_S_NO_MORE_BINDINGS error mean?
A: It indicates that there are no more available bindings to complete a remote procedure call operation.
Q: How can I resolve this issue?
A: Review your application's configuration and ensure that it is not exceeding system or network resource limits. Check the RPC settings on both client and server sides for any misconfigurations.
Summary
The RPC_S_NO_MORE_BINDINGS error code (1806, 0x70E) signifies that there are no more available bindings to complete an RPC operation. Developers should be aware of potential resource limits and configuration issues when encountering this error.