by the time that has passed since the posting, probably the author has solved the doubt, but the way I looking for trouble found this post, I would leave my solution here to help others who seek a solution to the same problem.
The solution that worked for me was simply fix the ip of the computer that is hosting the sap netweaver trial. After that, I stopped and restarted the server using the start and stop icon on the desktop and it worked correctly.
