When I try to log in Master Server, it logs as client (NBU7.5 RedHat)

Hi folks,

I've just installed in a CentOS new server NetBackup 7.5, the install finishes ok, but when I try to log on the Administration Console (tried via jnbSA and JAVA Console) it shows me, as my server was client. I've already installed NBU 6.5, 7.0 and 7.1 and never experienced this problem. Tried to update to 7.5.0.4 and the problem persists.

skipping the obvious questions, yeah, i've put the license and it recognizes it, I've tried putting all the settings in intallation as default, bp.conf shows me the server as master server, I've tried redownloading the installation files from fileconnect.

If anybody can help me solving this problem, I would be thankful