Wildcard certificate in 2 ports?

Hi all, I have a nodeJS app running on port 2443 in my server, responding to mywebservice.domain.com.

Then I have various websites set up in IIS, like client1.domain.com, client2.domain.com, client3.domain.com...

I have purchased a wildcard certificate for *.domain.com, and I am currently using it for mywebservice.domain.com at port 2443. Now I would like to use the same certificate for IIS and port 443, to also cover the client*.domain.com sites. Is ths possible, or I need a different certificate? another ip as well?

When I try to use the same certificate in both places, I get this error when accessing the client*.domain.com sites through the browser:

Error 107 (net::ERR_SSL_PROTOCOL_ERROR)

Not sure if this error is related to what seems to be the requirement of 1 certificate per ip and port or something else.

I intend to access the client websites through the web browser and the webservice app will be called typically from another server (https request) or from a browser using jsonp/CORS.


Any idea?

Thank you in advance.