OpenVPN Client Connects but No Internet

Elephant2255

Hello,

First of all I have been searching the forums and Internet looking for my solution and have tried many potential solutions and can not resolve the issue with my VPN connection. I have setup a VPN before but it's been a while.

I have a Windows 10 computer running OpenVPN as the 'server'. I need 1 computer from another location to connect to the server. The client PC (also Windows 10) will need to have Internet access through it's own modem but I need it to connect to the Windows 10 server shares via VPN.

Currently when I connect the VPN I can access shared files from the server by local IP's of that subnet. However the client PC will lose Internet connection. When I ping Google, the client PC DNS will resolve the name to an IP but nothing beyond.

The OpenVPN server has ports opened on the local Windows firewall as well as port forwarding on the router.

One fact to note is unfortunately both sites are using a router with the same subnet of 192.168.0.1 and mask 255.255.255.0
I know this isn't advised but it would be a lot of work to change either site. Both have IP phones, security camera, ect..
The VPN connection uses 192.168.10.X for IP's and it does get an IP from this range when connecting.

I have been working on this for a little while and am not clear what the issue is.

dev tun
dev-node VPNServer
ca "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ElephantVPN.crt"
key "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ElephantVPN.key"
dh "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\dh2048.pem"
topology subnet
mode server
server 192.168.10.0 255.255.255.0
port <XXXX>
proto tcp4-server
tls-server
tls-auth "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ta.key" 0
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
push "route 192.168.0.1 255.255.255.0 vpn_gateway"
push "redirect-gateway"
client-to-client
keepalive 10 120
cipher AES-128-CBC
persist-key
persist-tun
client-config-dir "C:\\Program Files\\OpenVPN\\config"
verb 4
max-clients 100
route-delay 5
route-method exe
register-dns

remote <server public IP>
client
port 9090
proto tcp4-client
dev tun
tls-client
tls-auth "C:\\Program Files\\OpenVPN\\config\\ta.key" 1
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
ca "C:\\Program Files\\OpenVPN\\config\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\config\\ClientVPN.crt"
key "C:\\Program Files\\OpenVPN\\config\\ClientVPN.key"
cipher AES-128-CBC
comp-lzo
persist-key
persist-tun
verb 3
mute 20

Any help or ideas would be greatly appreciated.

Thank you.

TinCanTech

Elephant2255 wrote One fact to note is unfortunately both sites are using a router with the same subnet of 192.168.0.1 and mask 255.255.255.0
I know this isn't advised but it would be a lot of work to change either site. Both have IP phones, security camera, ect..

I would nuke it from orbit ..

Elephant2255

When I have more time I will try and change the one subnet to a new range. All these networks had been setup prior to me taking this on.