Question : ERROR: There is no Citrix SSL server configured on the specified address. when accessing from company network Question:

Question: After upgrading our WebInterface users that working outsite of company with there own firewall has problem accessing applications which the could access before. This is what they say:

I'm trying to access a Citrix site outside of our company firewall.  I am able to access the website and log in using the username and password provided.  Once in, I am not able to launch the application.  I'm getting the error message: "Cannot connect to the Citrix MetaFrame Server.  There is no Citrix SSL server configured on the specified address."  
I am able to access the site and the application from my home office with no issue.  The problem only occurs when trying to access the vendor's Citrix site from our company network.

Can anybody help?

Answer : ERROR: There is no Citrix SSL server configured on the specified address. when accessing from company network Question:

You are doing it right, you want to use https://fqdn.myserver.domain (whatever matches your certificate's URL).  You should always use this unless you want to enable unsecure Web Interface connections.  You do this through DMZ settings though.  
Absolutely leave IIS on 444 only for it's SSL, you must give CSG 443.  It will pass the session to the Web Interface based on your configuration.  You can uncheck 'require ssl even, I don't think it will help or hurt CSG.