Customer unable to connect on port 5432, Postgres 10.7

Hello again Postgres friends,

Customer is unable to log in to a PG database on 5432 using a Windows client.
Output of my test sessions below, I think the problem may be lines 3 -
7 but no idea.
Ideas greatly appreciated!

Lines 1,2 PG Log entries
Lines 3-7 pg_hba.conf entries
Lines 8-10 postgresql.conf entries
Lines 11-12 Logging into the postgresql machine from a Linux machine
Lines 13-15 Successfully logged in, testing that SSH to the
linuxserver is successful
Lines 16-20 pguser successfully executes a query

1. LOG: connection received: host=aaa.bbb.ccc.ddd port=52310
2. 2021-01-21 15:34:00.657 MST [12011] FATAL: no pg_hba.conf
entry for host "aaa.bbb.ccc.ddd", user "pguser", database "testpgdb",
SSL off

3. # IPv4 local connections:
4. # host all all 127.0.0.1/32 ident
5. host pguser all eee.fff.ggg.1/24 password
6. host pguser all hhh.jjj.kkk.1/24 password
7. host pguser all 0.0.0.0/0 password

8. #listen_addresses = 'localhost'
9. listen_addresses = '*'
10. #port = 5432

11. pguser(at)linuxserver:~$ ssh -q pguser(at)www(dot)xxx(dot)yyy(dot)zzz
12. pguser(at)www(dot)xxx(dot)yyy(dot)zzz's password:

13. [pguser(at)pgserver ~]$ psql -U pguser -W testpgdb
14. pguser=> \conninfo
15. You are connected to database "testpgdb" as user "pguser" via
socket in "/var/run/postgresql" at port "5432".

16. pguser=> select 5.0/99;
17. ?column?
18. ------------------------
19. 0.05050505050505050505
20. (1 row)