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Forum Discussion
PL123
Dec 20, 2021Tutor
Microsoft Remote Desktop over OpenVPN can't find machine
I've got an Orbi AX4200 RBR750 with OpenVPN configured. I'm trying to use Microsoft Remote Desktop from a laptop over the VPN to a workstation. It all works fine when the laptop and workstation are o...
- Dec 20, 2021
Got it working! Thanks for the suggestions. In the end I changed so many things I have no idea what did the trick, but here's the setup in case it helps anyone else.
OpenVPN Connect (v3) did not work for me.
I'm using OpenVPN 2.5 with this config:
client
dev tun
proto udp
sndbuf 393216
rcvbuf 393216
push "sndbuf 393216"
push "rcvbuf 393216"
dev-node NETGEAR-VPN
remote <my no-ip url> 12973
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
cipher AES-128-CBC
comp-lzo
verb 4Laptop Win10 (the remote device)
Windows Defender Firewall
Remote Desktop App allowed public and private
Inbound Rules
OpenVPN Daemon allowed for TCP and UDP
OpenVPN TCP and UDP open all ports
Outbound Rules
OpenVPN TCP and UDP open all portsWorkstation Win8.1 (on Orbi LAN)
Zonealarm
Expert Rules
OpenVPN allow TCP/UDP on 12973Orbi Router
Laptop and Workstation have reserved IP addresses
VPN Config: TUN/UDP/12973
CrimpOn
Dec 20, 2021Guru - Experienced User
PL123 wrote:
It all works fine when the laptop and workstation are on the local network, but when the laptop is remote the VPN connects successfully but Remote Desktop can't find the workstation.
Tried the workstation machine name. Tried setting a static IP address on the workstation and using that. In both cases Remote Desktop can't find the address. Any suggestions?
After the remote desktop is connected using OpenVPN, can the remote laptop ping the workstation using the IP address of the workstation?
Do the Windows Firewall setting show Remote Desktop allowed for both Private and Public networks?
- PL123Dec 20, 2021Tutor
Ping fails. Remote desktop is enabled through the firewall.
- CrimpOnDec 20, 2021Guru - Experienced User
What a puzzle. If the laptop has reached the Orbi LAN, then it should be able to ping any device on the LAN that responds to ping. Can the laptop log onto the Orbi router web interface?
Did the host computer Firewall rules show ICMP allowed for both Private and Public access?
- PL123Dec 20, 2021Tutor
Got it working! Thanks for the suggestions. In the end I changed so many things I have no idea what did the trick, but here's the setup in case it helps anyone else.
OpenVPN Connect (v3) did not work for me.
I'm using OpenVPN 2.5 with this config:
client
dev tun
proto udp
sndbuf 393216
rcvbuf 393216
push "sndbuf 393216"
push "rcvbuf 393216"
dev-node NETGEAR-VPN
remote <my no-ip url> 12973
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
cipher AES-128-CBC
comp-lzo
verb 4Laptop Win10 (the remote device)
Windows Defender Firewall
Remote Desktop App allowed public and private
Inbound Rules
OpenVPN Daemon allowed for TCP and UDP
OpenVPN TCP and UDP open all ports
Outbound Rules
OpenVPN TCP and UDP open all portsWorkstation Win8.1 (on Orbi LAN)
Zonealarm
Expert Rules
OpenVPN allow TCP/UDP on 12973Orbi Router
Laptop and Workstation have reserved IP addresses
VPN Config: TUN/UDP/12973