Check the host-based access. In the file pgsql/data/pg_hba.conf you may
need to
add a line like this:
host all 198.168.0.12 255.255.255.0 trust
But replace 198.168.0.12 with your client IP.
Good luck!
Brian Schaffner <brian(at)schaffner(dot)net>
Independent Software Contractor
www.schaffner.net