Previously available as an experimental feature, adaptive transport is a fully supported feature in this release.

Adaptive transport is a data transport mechanism for XenApp and XenDesktop. It is faster, more scalable, improves application interactivity, and is more interactive on challenging long-haul WAN and internet connections. For more information about adaptive transport, see Adaptive transport.

In Citrix Studio, verify that the HDX Adaptive Transport policy is set to Preferred or Diagnostic mode. As of XenApp and XenDesktop 7.16, Preferred is selected by default. 

Preferred: Adaptive transport over Enlightened Data Transport (EDT) is used when possible, with fallback to TCP.
Diagnostic mode: EDT is forced on and fallback to TCP is disabled. 

To disable adaptive transport, set the HDX Adaptive Transport policy to Off in Citrix Studio.

To check whether UDP listeners are running, run the following command.

In normal circumstances, the output is similar to the following.