Please follow this instructions:
1- In your windows computer, find the file called "hosts" or "hosts.sam" (deppends the windows version), normally is inside the folder C:\WINDOWS\system32\drivers\etc
1- Open it with notepad, there you will see a line similar to this one:
3- Please add this new line after that one, or change the ip if you have already a record for this address:
4- save the file and follow the steps to add the portal key to your configuration file, edit your details and you are done.