


On a heavily loaded system, the SCM can time out on startup of Citrix ICA Service and before the process has even initialized.

In this configuration, the error can occur, depending on other factors such as XenServer load. Provisioned machines using Machine Creation Services (MCS)Ĭitrix has been able to reproduce the issue using a XenServer Windows XP Virtual Machine with 50MB RAM and VCPU priority of 4.Mass VDA restart (for example Windows Update).Hypervisor hosting server resources (XenServer, Hyper-V, VMware) when the VDA runs on as a virtual machine.Anything that slows down the startup of the operating system and service to the point that the default 30 second timeout is reached can cause the issue: In some environments, the Citrix ICA Service takes longer than the 30 seconds configured by default on a Microsoft Operating System.
