Can't reach LAN machines and unstable connection

asousai9

Hello.

I'm using openVPN on my office through a Mikrotik router and is working like a charm.

One of this days I have installed OpenVPN on a windows server 2019 as VPN endpoint for users to access files on the server and local machines on their officce LAN.

I generated the certificates and I can connect to the VPN but the connection is very unstable and if I try to reconnect I will wait for hours to do it.
Before I could reach the server by the lan IP but now only with the VPN endpoint IP. I can't reach machines inside of the lan.

I will leave the servver and clients config.
Is their any config that I forgot on windows server?

LAN network: 192.168.0.0/24
VPN: 10.8.0.0/24

;local 192.168.0.50

port 1194

# TCP or UDP server?
;proto tcp
proto udp

;dev tap
dev tun

;dev-node MyTap

ca ca.crt
cert server.crt
key server.key

dh dh2048.pem

;topology subnet
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt

push "route 192.168.0.0 255.255.255.0"
;push "route 192.168.20.0 255.255.255.0"

;learn-address ./script

;push "redirect-gateway def1 bypass-dhcp"
push "dhcp-option DNS 8.8.8.8"
;push "dhcp-option DNS 208.67.220.220"

client-to-client

keepalive 10 120
tls-auth ta.key 0 # This file is secret

cipher AES-256-CBC

comp-lzo

;user nobody
;group nobody

persist-key
persist-tun

status openvpn-status.log

verb 3

;mute 20

# Notify the client that when the server restarts so it
# can automatically reconnect.
explicit-exit-notify 1

client
dev tun
proto udp
remote my-server-2 1194
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
remote-cert-tls server
tls-auth ta.key 1
cipher AES-256-CBC
comp-lzo
verb 3

Thank you.

TinCanTech

asousai9 wrote I'm using openVPN on my office through a Mikrotik router

Using Mikrotik is a bad idea

asousai9

TinCanTech wrote
asousai9 wrote I'm using openVPN on my office through a Mikrotik router
Using Mikrotik is a bad idea

The mikrotik installation is working really good.

The one that I have problems the openvpn server is a Windows server 2019 and clients are windows pc.
The ISP internet is kind of unstable. I guess the ISP is dropping packets .

Thanks

TinCanTech

asousai9 wrote I guess the ISP is dropping packets

Or your Mikrotik router is dropping packets.

asousai9

TinCanTech wrote
asousai9 wrote I guess the ISP is dropping packets
Or your Mikrotik router is dropping packets.

Forget the mikrotik. It is a different instalation.
The router in this case is a TP-LINK AC670. I think it is dropping packets because even if I'm connection to the endpoint ip the RDP is going down.

Thanks,

Kind regards

TinCanTech

asousai9 wrote if I'm connection to the endpoint ip the RDP is going down.

RDP is known to do that, frequently.

300000

Udp drop packets is true that is how data send over internet . If you charge from udp to tcp the packets will not drop anymore .