Technology Notebook

CITRIX::Slow/lag in keystrokes

Sometimes when typing a document or e-mail in a Citrix session the server stops accepting keystrokes and my typing gets "buffered" then eventually catches up.
A couple of news group articles warn that if latency gets up to 650ms to 700ms Citrix sessions start to die.
A continuous ping from an affected workstation to the server shows response times of 20-30ms for 99% of the time with occasional responses over 400ms to maybe 550ms max.
On the client I am trying setting the "latency reduction" to ON and check the box to "local text echo"
This can be setup automatically by changing lines in the APPSRV.INI:

ZLKeyboardMode=0
ZLMouseMode=2

This needs changed in the copy of this file in the user profile directory of the client machine:

C:\Documents and Settings\[USERID]\Application Data\ICAClient

(there is also a copy in the program directory - a bit confusing.)