![Error "Http/1.1 Internal Server Error 43531" when accessing Citrix Gateway after upgrading to version 13.0 build 71.40 Error "Http/1.1 Internal Server Error 43531" when accessing Citrix Gateway after upgrading to version 13.0 build 71.40](https://support.citrix.com/files/public/support/article/CTX291268/images/0EM4z000002NDKE.jpeg)
Error "Http/1.1 Internal Server Error 43531" when accessing Citrix Gateway after upgrading to version 13.0 build 71.40
![Installation, configuration and integration of Citrix NetScaler Gateway 11.0 with XenApp/XenDesktop - Citrix - Tutorials - InformatiWeb Pro Installation, configuration and integration of Citrix NetScaler Gateway 11.0 with XenApp/XenDesktop - Citrix - Tutorials - InformatiWeb Pro](https://www.informatiweb-pro.net/images/tutoriels/virtualisation/citrix/netscaler-gateway/13-remote-client-config/2-remote-pc-ca-certificates.jpg)
Installation, configuration and integration of Citrix NetScaler Gateway 11.0 with XenApp/XenDesktop - Citrix - Tutorials - InformatiWeb Pro
![Installation, configuration and integration of Citrix NetScaler Gateway 11.0 with XenApp/XenDesktop - Citrix - Tutorials - InformatiWeb Pro Installation, configuration and integration of Citrix NetScaler Gateway 11.0 with XenApp/XenDesktop - Citrix - Tutorials - InformatiWeb Pro](https://us.informatiweb-pro.net/images/tutoriels/logos/us/citrix-netscaler-gateway-11-0-configuration-and-integration-with-xenapp-xendesktop.jpg)