Check the state or current setting of TCP Auto-Tuning

1. Open elevated command prompt with administrator’s privileges.
2. Type the following command and press Enter:

   netsh interface tcp show global

   The system will display the following text on screen, where you can check on the Auto-Tuning setting:

   Querying active state…

   TCP Global Parameters
   ———————————————-
   Receive-Side Scaling State : enabled
   Chimney Offload State : enabled
   Receive Window Auto-Tuning Level : normal
   Add-On Congestion Control Provider : none
   ECN Capability : disabled
   RFC 1323 Timestamps : disabled

Disable TCP Auto-Tuning

1. Open elevated command prompt with administrator’s privileges.
2. Type the following command and press Enter:

   netsh interface tcp set global autotuning=disabled

Enable TCP Auto-Tuning

1. Open elevated command prompt with administrator’s privileges.
2. Type the following command and press Enter:

   netsh interface tcp set global autotuning=normal