OpenVPC Connect route failure

[ninjanody]

Hello,

I have a pfSense Firewall with OpenVPN server installed. I have all type of clients (Windows, Linux, IOS, Android) and all of them except Android are working fine. I can't even ping from the device the opv gateway or the opposite from android devices. From Windows or IOS device, i can ping all the internal routes. So i figure that android is not using the vpn gateway as default. I have tried to redirect the gateway with "redirect-gateway def1" but it didn't work.

Versions:
Windows OpenVPNClient: 2.4.7
IOS OpenVPN Client: 3.0.2.(894)
Android OpenVPN Client: 3.0.5.(1816)

Devices:
PC: Windows 7 & Windows 10
IOS: Iphone 7, Iphone 8
Android: Samsung S7 Edge, Samsung S10, Galaxy Tab A (SM-T510)

Client Configs:
dev tun
persist-tun
persist-key
cipher AES-128-CBC
ncp-disable
auth SHA256
tls-client
client
resolv-retry infinite
remote 77.XX.XX.216 1194 udp
verify-x509-name "77.XX.XX.216" name
auth-user-pass
remote-cert-tls server
compress
<ca>...</ca>
<cert>...</cert>