ICA Latency is incorrectly showing as 64,000 ms when using EDT via Citrix Gateway

The issue is resolved in the following firmware releases:
12.1.62.x +
13.0.84.x +
13.1.11.x +

This issue is also documented in the fixed issues section of the release notes:

The ICA latency of a session is recorded incorrectly as 64,000 ms in the Citrix Director when L7 latency is enabled. L7 latency is enabled when the nsapimgr knob enable_ica_l7_latency is set to 1.

[ NSHELP-23459 ]

The below workaround may be implemented if immediate upgrade is not possible:

1. Enable the EDT Insight functionality using the knob “nsapimgr -ys enable_ica_edtinsight=1”
2. Disable the L7 latency functionality using the knob “nsapimgr -ys enable_ica_l7_latency=0”

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Problem Cause

Firmware issue (NSHELP-23459)

From Citrix ADC release 13.0 build 83.17 and later, you can specify a time interval, in seconds, for which the L7 client latency value is to be calculated. This configuration is required if you have enabled L7 latency and the ICA latency of a session is incorrectly recording as 64,000 ms.

https://docs.netscaler.com/en-us/citrix-gateway/13/hdx-enlightened-data-transport-support/l7-latency-thresholding.html#parameter-to-specify-a-time-interval-for-l7-client-latency-value-calculation