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amarinos_FTNT
Staff
amarinos_FTNT
Staff
September 8, 2025

Technical Tip: When disabling nTurbo globally offloaded traffic is impacted

  • September 8, 2025
  • 0 replies
  • 269 views

 

Description This article describes additional actions needed when disabling nTurbo globally for troubleshooting purposes. The existing sessions are not marked 'dirty', and long-lived sessions are affected.
Scope FortiGate.
Solution

If, for any reason, nTurbo needs to be disabled globally:

 

FG # config ips global
FG (global) # set np-accel-mode none
FG (global) # end

 

The existing sessions that are already offloaded are not marked 'dirty'.

As a result, this specific traffic is dropped.

 

Solution. Any of the options below will resolve the issue:

  • Clear all sessions after disabling nTurbo. This will delete all sessions.

 

FG # diagnose sys session filter clear

FG # diagnose sys session clear

 

  • Or reboot the device.
  • Or failover to the secondary if there is an HA.

 

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