D.7 126 0x7e NCP BOUNDARY CHECK FAILED

Source: NCP Engine

Explanation: The NCP size allocated for the function does not match the actual size of the data sent. This can occur if the request was not formatted properly, or if there was packet corruption in the transmission between the client and server.

Action: Ensure that the network equipment between the client and server are functioning properly. If it is and the error persists, it could be a problem with the requesting application.