i have a problem with windows server STD edition SP2 with Citrix PS4.0 installed, When servers get rebooted as per reboot schedule some servers are coming back up but the ICA session is in a down state not listening ? and doesn't respond to ICA requests.
the manual workaround is to go into system properties click on the remote tab unstick remote desktop then click on apply then tick remote desktop click on apply then ok it.
then ICA session state changes to UP listening and responds to ICA requests.
i have the same problem across 6 other PS4.0 servers in the same farm.but sometimes the reboot of the server is fine and ica comes back up fine? real hit and miss after rebooting