I have WI setup thru Access Gateway and external using coming thru Access Gateway/NetScaler, the configuration looks okay but when external users trying to launch any app, an error message coming up, SSL error 4 unable to lauch your application.
Please see the screen shot. Internal users can access all apps without any issue.
Another concern is when external user typed WI address its gonig to completely different address for e.g. instead of going to https://webinterface.abc.com/citrix/xenapp its going to https://webinterface.abc.com/vpn/index.html