Sunday, February 16, 2014

Network adapter tweaks for Windows Server 2003, 2008, SBS 2008, and SBS 2011

These technologies are great if your environment support them end to end, but if not you may see some of the following issues.

Symptoms include:
  • Sporadic Network issues.
  • Service failing (Because of network login issues)
  • Delay in service start (Because of network login issues)
  • Unexplained issues that Seem to be network related but other areas have already been investigated

Resolution: To keep it as simple and reliable as possible
  1. Update to latest drivers
  2. Disable Everything that says offload or scaling in the NIC properties
  3. Disable it for the OS as well

Windows Server 2008 / Server 2012 / SBS 2008 / SBS 2011
  • netsh interface tcp set global rss=disabled
  • netsh interface tcp set global chimney=disabled
  • netsh interface tcp set global autotuninglevel=disabled
Windows Server 2003 / SBS 2003
  • netsh int ip set chimney disabled

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