Almost everybody has struggled with the now infamous Error 1030 (The connection to "ApplicationName" failed with status (1030)) when connecting with Citrix Receiver for Windows to XenDesktop through NetScaler and StoreFront. There even is an whole armada of articles available out there, totally dedicating their content to troubleshooting this quite generic network error indicating that the connection has failed. Just google it!
The solution to this error? Well, it depends...