If you are connecting to an App or Desktop and it takes longer than usual, or if you need to give the applicatioin or Desktop more time to launch – you may consider altering the ApplicationLaunchWaitTimeoutMS registry key on the VDA’s hosting your applications or desktops.
xenapp
Securing DDC XML Broker communication over HTTPS
For Citrix StoreFront and Delivery Controller communication, you need to specify XML service broker communication to travel over HTTPS or HTTP and specify a port such as 80 or 443. The XML service is used for application and desktop resource enumeration including handling user name and password data from StoreFront to DDCs.
Allow users to change password via Receiver for Web
With the default installation of XenApp/Desktop 7.5+ by default, users cannot change their own passwords via Receiver for Web.
The StoreFront console provides an administrator with three options for managing passwords;
1. Never (enabled by default)
2. When expired (users will only be prompted when their password has expired)
3. At any time (users can freely change their password at any time)