Hello, I need your help, please. I have spent many hours trying to configure OpenVPN Client on the TP-LINK ER605, but I haven’t been successful. When I add the configuration along with the .ovpn file, I don’t see the tunnel being established.

I currently have a VPS server where I configured an OpenVPN Server version 2.4.7. I’ve tried many different ways but haven’t been able to make it work. The .ovpn file I’m using on the ER605 does work on a PC using OpenVPN 2.4 as the client, so I don’t know what I might be doing wrong. I also don’t have access to logs on the ER605 side. On the VPS side, it looks like a normal connection attempt arrives, but nothing seems to happen on the ER605.

These are the files I'm currently using:

server .ovpn file

port 58080
proto udp
dev tun
ca /etc/openvpn/ca.crt
cert /etc/openvpn/server.crt
key /etc/openvpn/server.key
dh /etc/openvpn/dh.pem

server 10.8.0.0 255.255.255.0
ifconfig-pool-persist /var/log/openvpn/ipp.txt

keepalive 10 120
persist-key
persist-tun
comp-lzo
user nobody
group nogroup

cipher AES-256-CBC
auth SHA256
tls-auth /etc/openvpn/ta.key 0

client-config-dir /etc/openvpn/ccd
status /var/log/openvpn/openvpn-status.log
log /var/log/openvpn/openvpn.log
verb 3
topology subnet
client-to-client
remote-cert-tls client
tls-version-min 1.0

Er605 .ovpn file
 

client
dev tun
proto udp
remote MY PUBLIC IP 58080
resolv-retry infinite
nobind
persist-key
persist-tun
cipher AES-256-CBC
auth SHA256
remote-cert-tls server
tls-auth ta.key 1
comp-lzo
verb 3
key-direction 1

<ca>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
</ca>

<cert>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
</cert>

<key>
-----BEGIN PRIVATE KEY-----
...
-----END PRIVATE KEY-----
</key>

<tls-auth>
-----BEGIN OpenVPN Static key V1-----
...
</tls-auth>

Please let me know if there are more details that can be helpful.  I don't know what to do.