I deployed the IBM app center on IBM worklight server 6.1 and enabled the SSL by generating SSL certificate using Liberty core's common utility and updated the server.xml according to that.
When I am accessing the link https://< serverIP >:< sslPort >/appcenterconsole/inst.html
It shows SSL error SSL certificate not matches the server URL this is my first problem.
On chrome it shows an option to proceed anyway after that I am able to access the page which has IBM App Center installer application using my username and password.
But when I click on the link of the application to download and install the app it shows message that Cannot connect to < serverIP > this is my second problem
You generated a self-signed certificate. Per documentation, IBM Application Center does not support self-signed certificates. You need to purchase an official SSL certificate from a certificate authority. This limitation comes actually from iOS.
There is a complex workaround, but I recommend this only for testing. The workaround is not really suitable for production: