Windows System Errors

Windows System Errors 56 — ERROR_TOO_MANY_CMDS

In Windows System Errors, code 56 is ERROR_TOO_MANY_CMDS. The official source describes it as “The network BIOS command limit has been reached.”. Its concrete cause depends on the operation and surrounding message.

Code56
SymbolERROR_TOO_MANY_CMDS
Source confidencehigh

Official definition

The network BIOS command limit has been reached.

In plain language

In Windows System Errors, code 56 is ERROR_TOO_MANY_CMDS. The official source describes it as “The network BIOS command limit has been reached.”. Its concrete cause depends on the operation and surrounding message.

Context to inspect

  • The surrounding operation, version and subsystem determine the actual cause.
  • The same numeric value can mean something different in another namespace.

Safe first checks

  1. Confirm which product, protocol or subsystem produced the code.
  2. Read the full surrounding error message and inspect relevant logs.
  3. Compare the code with the linked authoritative documentation before changing configuration.

Important context

The surrounding operation, version and subsystem determine the actual cause.

Authoritative source

Microsoft Learn — System Error Codes

Related codes