I'll check those too. Anyway, here are the subnet infos I promised.

WAN 1000baseT <full-duplex> 84.*********
LAN1 1000baseT <full-duplex,master> 10.0.0.1/28 (10.0.0.1 - 10.0.0.14 range / 10.0.0.10 - 10.0.0.14 for DHCP)
LAN2 none ......... 10.0.0.17/28 (10.0.0.17 - 10.0.0.30 / Fully allocated for DHCP)
LAN3 1000baseT <full-duplex> 10.0.0.33/28 (10.0.0.33 - 10.0.0.46 / Fully allocated for DHCP)
LAN4 1000baseT <full-duplex> 10.0.0.100/27 (10.0.0.97 - 10.0.0.126 / 10.0.0.101 - 10.0.0.126 for DHCP, 10.0.0.101 Static Leased for Access Point)

I do not have any firewalls apart from the one in pfSense.
LAN1 has a computer connected to them directly, no switches etc..

So that computer and the other devices on LAN4 are not running firewalls? So you have deactivated it?

For me, pfSense acts as the router/firewall/dhcp/dns resolver.

This is my layout:
ISP VDSL2 --> DMZ Eth4 --> pfSense WAN

pfSense's interfaces:

WAN (This is connected to my VDSL2 modem Eth4 which is in DMZ mode. This method provides the pfSense box a public IP, separate from our main home network.)

LAN1 has a computer connected to them directly, no switches etc..

LAN2 has no connected device at the moment (But is used for direct ethernet to device)

LAN3 has a computer connected to them directly, no switches etc..

LAN4 has a POE-powered Cisco AirLap 1600 series AccessPoint connected to it, which has three devices connected to it wirelessly (one of the devices is connected to my workplace via VPN, as all the traffic on that specific device is forced to go through the workplace network, either via VPN or real office ethernet/wireless)

I'll update my subnets here after work.