Microsoft patches KB4338815 and KB4338818 may causes services to fail with port in use errors

ID:    A87
Published:    13 August 2018
Updated:    13 August 2018

Operating System(s)

  • Windows 2008 R2
  • Windows 2012


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On servers that deployed Microsoft security patches KB4338815 (Windows 2012 R2) or KB4338818 (Windows 2008 R2 SP1), TCP/IP connectivity to services may stop working following a service restart. The logs for these services may subsequently have errors similar to:
  • Tcp port is already in use
  • Address already in use: JVM_Bind <null>:PortNumber
When the command netstat -a is executed, none of the ports reported in the error messages show up as actually being in use. (They do not have a LISTENING or ESTABLISHED state.)
Only a system reboot can solve the immediate problem, but that fix is not permanent. See KB doc S142656 for a solution.

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