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Computers and servers running recent versions of Microsoft Windows and Microsoft Windows Server may stop responding to network traffic, or may stop responding altogether, with a large number of AFD event 16002 messages logged to the System event log. The message that accompanies this event will appear similar to the below.

Closing a UDP socket with local port number 60521 in process 924 is taking longer than expected. The local port number may not be available until the close operation is completed. This happens typically due to misbehaving network drivers. ENsure latest updates are installed for Windows and any third-party networking software including NIC drivers, firewalls, or other security products.

Other events may also be logged depending on the roles and software products installed on this server which lose network connectivity.

This appears to be a known issue affecting certain server and NIC vendors, however might not be specific to those vendors. Steps to identify and resolve this issue are recommended to include updating the following system components:

  • Server BIOS
  • NIC firmware
  • NIC drivers
  • Windows Updates

This issue is confirmed by the vendor to affect HP ProLiant DL360p Gen8 servers and is corrected by updating the system BIOS to version 2015.07.01 (A)(11 Nov 2015)1.

This has been verified to be resolved by applying the latest available (to date) BIOS, device firmware and drivers available from HP on the HP ProLiant MicroServer Gen8 running Microsoft Windows Server 2012 R2, using the versions provided with the Service Pack for ProLiant (SPP) Version 2016.04.0. Contact your server vendor or Microsoft Support for further information or assistance.

References

  1. Hewlett Packard Enterprise. (2015). System ROMPaq Firmware Upgrade for HP ProLiant DL360p Gen8/DL360p Gen8 SE (P71) Servers (For USB Key-Media). Available: http://h20566.www2.hpe.com/hpsc/swd/public/detail?sp4ts.oid=5194968&swItemId=MTX_4a66f6bc8f0948368f65aa1dfd&swEnvOid=4103#tab4. Last accessed 12 October 2016.