Why can I not access a different subnet with IPSEC L2TP VPN?

I have setup VPN and can successfully connect.

The vpn client ip pool is : 192.168.1.100 - 192.168.1.199

The LAN subnet is 192.168.1.0/24

In this setup I can successfully access devices on 192.168.1.0/24.

However, If I change the vpn client ip pool to : 192.168.2.100 - 192.168.2.199

I can no longer access any devices on the 192.168.1.0/24 subnet.

Is anyone able to shed some light on the issue, for how to access the different subnet using VPN?

Thanks in advance

My VPN configuration:

vpn {
ipsec {
auto-firewall-nat-exclude disable
esp-group ESP_POLICY {
compression disable
lifetime 3600
mode transport
pfs enable
proposal 1 {
encryption aes256
hash sha1
}
}
ike-group IKE_POLICY {
dead-peer-detection {
action clear
interval 30
timeout 90
}
ikev2-reauth no
key-exchange ikev1
lifetime 3600
proposal 1 {
dh-group 5
encryption aes256
hash sha1
}
}
ipsec-interfaces {
interface eth0
}
nat-networks {
allowed-network 0.0.0.0/0 {
}
}
nat-traversal enable
}
l2tp {
remote-access {
authentication {
local-users {
username bondiiadmin {
password ****************
}
}
mode local
}
client-ip-pool {
start 192.168.5.100
stop 192.168.5.199
}
dns-servers {
server-1 8.8.8.8
server-2 8.8.4.4
}
ipsec-settings {
authentication {
mode pre-shared-secret
pre-shared-secret ****************
}
ike-lifetime 3600
}
mtu 1492
outside-address 96.44.182.212
outside-nexthop 96.44.182.209
}
}