04-08-2013 03:05 PM
The BlackBerry smartphone simulator connects to the MDS-CS Simulator on a hard coded port. So you can't run more than one instance of the MDS-CS Simulator on a single computer. It attempts to connect using a local connection, but can be configured to use a remote IP based on the MdsIP setting in the batch file. IPPP is the custom protocol they'll be using to communicate with one another, which isn't that relevant for troubleshooting here.
What error are you getting when you try to browse?