When I install PostgreSQL from BigSQL I can connect from QGIS on other PC to my local PostgreSQL Server (both PCs are on the same local network 192.168.100.0/24). But then I can't install PostGIS because it always says $libdir/postgis-2-3 can't be found (even I copied that folder to libdir path).

When I install PostgreSQL from EnterpriseDB, I install PostGIS very easy. BUT, now I can't access my server remotely (from QGIS).

In both cases I added proper configs to pg_hba.conf and postgresql.conf files (port, listen_address and allowed hosts). Then I restart my server but nothing.

What I'm missing?