Problem installing SAP B1 v9.0 on windows

Hi

I'm having the very same issue as this question:

v9 B1SiteUser password

However I tried PALANIAPPAN ARUNACHALAM's answer, but nothing, tried reinstalling from scratch, still got "Authentication against the specified License Server has failed. Check your SiteUser password"

TCP/IP already enabled on SQL Server, Server tools installed, I can access to License Manager Server, already running, SQL Browser in automatic mode, and nothing, there's no possible way I can install it, still got same message.

Already tried changing localhost to 127.0.0.1, always on port 30000, nothing happens, tried on win8 x64, and win server 2008 R2 x64, with SQL Server Enterprise 2012 x64.

Does anybody knows how to effectively fix this?

I just want to try SAP B1 with SAPB1Admin password, I can't figure out how to solve this, already tried everything on that post.

Thanks in advance!

PS = If you need further explanation let me know!