This needs to be set up on the secondary. The primary won't care about that setup.
2) I have the connection string set for the replication server to connect,
primary_conninfo = 'host = 192.168.1.112 port = 5433 user = {pg_rep_user }password = {password}'
But the log file shows
LOG: waiting for WAL to become available at 2/A10000B8 FATAL: could not connect to the primary server: connection to server at "{IP}", port 5433 failed: fe_sendauth: no password supplied
You need to set up the .pgpass file (on Unix) or pgpass.conf (on Windows). Seems quite complex to figure out where to put that file on Windows.