SSL Problem with sub-servers

Hi, I've the following problem. We host one domain with several sub-servers representing sub-domains. Even having a wildcard-certificate only one sub-server is allowed to use ssl (this is the first error).

The main problem is, that when accessing a sub-server that doesn't have ssl enabled via https (e.g. by error), the sub-server that has ssl enabled is accessed, but not shown in the url.

To test, access the following sites:

1. https://office.unicum-consulting.ch SSL enabled
2. http://iah1.unicum-consulting.ch SSL not enabled
3. https://iah1.unicum-consulting.ch SSL not enabled but shown is 1.

Status: 
Closed (fixed)