Apache2 fails on boot, starts from cli

Need assistance please.  Two servers, one production, one backup, near 
identical hardware (8 core Intel CPUs, 64 Gib RAM) Ubuntu 20.04.6 LTS 
with security extension, Apache/2.4.41 (Ubuntu) running behind nginx 
proxy (nginx/1.18.0 (Ubuntu)), all apache2 conf, mod, sites and ports 
files identical.  No port conflict found using "# ss -tulpn"

Production server perfect, but on backup server boot, apache2 fails to 
start, then will start manually on command line and then runs perfectly, as:

● apache2.service - The Apache HTTP Server
      Loaded: loaded (/lib/systemd/system/apache2.service; enabled; 
vendor preset: enabled)
      Active: failed (Result: exit-code) since Sun 2025-08-31 22:46:13 
UTC; 51s ago
        Docs: https://httpd.apache.org/docs/2.4/
     Process: 965 ExecStart=/usr/sbin/apachectl start (code=exited, 
status=1/FAILURE)

Aug 31 22:46:12 server systemd[1]: Starting The Apache HTTP Server...
Aug 31 22:46:13 server apachectl[1002]: (99)Cannot assign requested 
address: AH00072: make_sock: could not bind to address 192.168.0.95:8442
Aug 31 22:46:13 server apachectl[1002]: no listening sockets available, 
shutting down
Aug 31 22:46:13 server apachectl[1002]: AH00015: Unable to open logs
Aug 31 22:46:13 server apachectl[965]: Action 'start' failed.
Aug 31 22:46:13 server apachectl[965]: The Apache error log may have 
more information.
Aug 31 22:46:13 server systemd[1]: apache2.service: Control process 
exited, code=exited, status=1/FAILURE
Aug 31 22:46:13 server systemd[1]: apache2.service: Failed with result 
'exit-code'.
Aug 31 22:46:13 server systemd[1]: Failed to start The Apache HTTP Server.

paul@server:/$ sudo service apache2 start

paul@server:/$ sudo systemctl status apache2
● apache2.service - The Apache HTTP Server
      Loaded: loaded (/lib/systemd/system/apache2.service; enabled; 
vendor preset: enabled)
      Active: active (running) since Sun 2025-08-31 22:47:48 UTC; 2s ago

Logs have nothing relevant (a minor php warn note identical on both 
"poduction" and "backup" servers.)

I would truly appreciate thoughts, suggestions and help...

Thanks and warmest regards,
Paul