Are you able to connect to either database using the cli tools such as mysql or psql for postgres ? Did you make sure to add the correct db driver username and credentials in the netxms config? You also would have to have configured netxms to build those drivers --with-pgsql --with-mysql --with-sqlite in orderian to initialize the databases. Hope any of that helps. I have never had any issues as long as every thing builds correctly and I am able to connect to the DB with my configured username and password from the cli tools then i'm usually good to go.