The CIDR for your range of IP addresses
192.168.5.100 - 192.168.5.150
192.168.5.224 - 192.168.5.225
65536 IP addresses.
Which is covered in the default settings.
So no need to add anything and best to remove your addition back to the default.
Save the file and restart Apache.
Now you need to look elsewhere for the solution as to why you can't connect from the VPN on your LAN - perhaps DNS or some router setting - with that aspect I can't help but others who read this may be able to.