Unable to connect... APP VM201

“Unable to connect to server” How do we solve this when we open the app?

How did you configure the app?

Downloaded by App store.
Message: unable to connect to server, please verify the settings (ip … port…)
No Idea how to verify this.

Go to settings on your iPhone
And the VM201 app should be in the list of apps.
There you configure the server and port.