SAP PI JAVA stack not loading

Hi everybody!

I recently have installed SAP NW 7.3 PI in windows+sql server

I have patched java stack to sps10 and I'm currently patching sps10 of abap stack

My problem is: I'm trying to access to NWA with url http://localhost:50000/nwa (my instance is 00) but internet browser isn't showing anything. It looks that there is nothing running over port 50000 (firewall is disabled)

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I tried with useradmin (http://localhost:50000/useradmin) and it happens the same

SAPMMC shows in green all my instances and java log is not showing me anything

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What can I check?

Why can't I see anything?

thanks in advance