DaVinci Resolve installs the PostgreSQL database server. By default the permissions of the server settings disable access by any non local loopback ip addresses. That is, anything that’s not 127.0.0.1.
To enable a range of IP addresses to connect to the database server, you have to explicitly enable them in the configuration file, which for Macs is located here:
/Library/PostgreSQL/8.4/data/pg_hba.conf
Note that this folder is not readable by normal users. You will have to use Terminal and sudo into the folder, and edit the pg_hba.conf file, and then restart the server using the utilities in this folder:
/Applications/PostgreSQL 8.4/
For example, this line will enable all IP addresses in the range 192.168.1.0-255:
host all all 192.168.1.0/24 md5
Not sure why this isn’t mentioned anywhere in the Documentation! Hope this helps.