VPN is not working anymore

Hello,

I had a setup for my vpn tunneling and it worked ok till recently.

Im not sure why it stopped working.

Now, when I want to connect from my phone through wireguard to my Unraid, I can't, and also, I don't have internet on my phone when Im connected over vpn (wifi/4G).

So here is my setup flow:

1. I have static ip address and I have a domain mapped to port 51820, vpn.something.com:51820

2. I setup port forwarding from my primary ISP Calix router to my udm-pro secondary router which is on ip 10.10.10.4 (this is DHCP IP range from primary router, secondary router has range from 192.168.1.1)

3. I have also installed nginx manager, so, basically, when request hits, it knows to delegate to right container, or whatsoever.

4. Eventually, I added VLAN20 (192.168.20.1) in my udmpro, and connected to my unraid which is now on 192.168.20.79 (instead on 192.168.1.79)

Here is mine setup of vpn settings, also network settings:

network:

What I have tried so far:

1. restarting unraid, routers etc.

2. checking my domain and my port forwarding list

3. erasing wireguard from mobile and adding tunnel again

4. adding vlan20 because I've read somewhere on the forum, that would help

Notice: I installed adguard Home..but I think it doesnt have impact on this issue (I disabled it).