did you check what ports are needed for September version ?
I hope it helps.
Okay, its the same like in April 2018,
But , giving it a second look, reminds me, that I have a Postgre9.6 installed on the server, but on port 5432
When i made the install of April 2018 before a couple of months, i Specified that port 5432 will be used for QRD( not 4432 as in default). And everything was working.
Is the problem lying somewhere in the Postgre?