What does Windows error code 103 (ERROR_TOO_MANY_SEM_REQUESTS) mean? Status / error code: Category: Constant name: Source: Operating System: Description: The semaphore cannot be set again. Could be also: ConstantTypeOS HTTP_EARLY_HINTSHTTP CodeAny ECONNABORTEDerrnoLinux ENOPOLICYerrnoMac EALREADYerrnoWindows CONFIG_INITIALIZATION_FAILEDBugCheck CodeWindows Looking for a different code? Search another status or error code.