![HA Sync Error after Upgrade : "Unable to connect to Primary. Please check the network connectivity from secondary to Primary" after upgrade HA Sync Error after Upgrade : "Unable to connect to Primary. Please check the network connectivity from secondary to Primary" after upgrade](https://support.citrix.com/files/public/support/article/CTX322891/images/0EM4z000002Skse.jpeg)
HA Sync Error after Upgrade : "Unable to connect to Primary. Please check the network connectivity from secondary to Primary" after upgrade
![Failed to launch session with the error code “Your session 'AppName' did not launch successfully due to error code 3505. Please contact your administrator for more information about the error.” on Citrix Failed to launch session with the error code “Your session 'AppName' did not launch successfully due to error code 3505. Please contact your administrator for more information about the error.” on Citrix](https://support.citrix.com/files/public/support/article/CTX267695/images/0EM0z000000iLRQ.jpeg)
Failed to launch session with the error code “Your session 'AppName' did not launch successfully due to error code 3505. Please contact your administrator for more information about the error.” on Citrix
![Application Launch Fails with Protocol Driver Error after Changing the Static IP Address of the XenApp Server Application Launch Fails with Protocol Driver Error after Changing the Static IP Address of the XenApp Server](https://support.citrix.com/files/public/support/article/CTX131831/images/0EM60000000POzo.gif)
Application Launch Fails with Protocol Driver Error after Changing the Static IP Address of the XenApp Server
![Unable to connect to the server. Contact your system administrator with the following error" When Launching Desktop Unable to connect to the server. Contact your system administrator with the following error" When Launching Desktop](https://support.citrix.com/files/public/support/article/CTX236975/images/0EM0z000000BBVw.jpeg)
Unable to connect to the server. Contact your system administrator with the following error" When Launching Desktop
![Error 1065 The Citrix Broker Service failed to determine the base settings needed for virtual desktop agent of machine Error 1065 The Citrix Broker Service failed to determine the base settings needed for virtual desktop agent of machine](https://support.citrix.com/files/public/support/article/CTX224674/images/0EM0z000000HfeQ.jpeg)
Error 1065 The Citrix Broker Service failed to determine the base settings needed for virtual desktop agent of machine
![Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud](https://support.citrix.com/files/public/support/article/CTX238890/images/0EM0z000000BXmp.png)
Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud
![Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud](https://support.citrix.com/files/public/support/article/CTX238890/images/0EM0z000000BXmk.png)
Unexpected Error, Contact Citrix Support Error ID: XDDS:DFB94D9B' - Unable to Update Machine Catalogs -Citrix Cloud
![Citrix Receiver Error – Could Not start app – There was a problem contacting “Store” – SOLVED – Citrixology Citrix Receiver Error – Could Not start app – There was a problem contacting “Store” – SOLVED – Citrixology](https://citrixstuff.files.wordpress.com/2014/06/capture46.png)