You have to add the /citrix/accessplatform to the FQDN of the webinterface or the secure gateway.
This is by design but can be ommitted when the default website is set to the webinterface
This can be done in the configuration of the web interface under "all tasks" - "tasks for local sites" - "IIS hosting" - "standard website set to /citrix/accessplatform"
Hope this helps you.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.