No LAN or Internet access after server update to Windows 10 build 1803

Bob1976

Hello,

I'n new here so I'm trying my best to follow the rules 😉

I have a problem with accesing my LAN and Internet. I recently updated my server pc to Windows 10 build 1803 (before I used build 1511 and it all worked fine).

The problem is as follows:
I can access the server (localhost) from the clients. I can ping the localhost (10.8.0.1) and I can also ping the LAN ipadress of my server (192.168.42.18). But I can't acces or ping the LAN behind the server or access the internet.

This is how my server and client settings look:

port 1195
proto tcp4
dev tun
ca "C:\\Program Files\\OpenVPN\\config\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\config\\server.crt"
key "C:\\Program Files\\OpenVPN\\config\\server.key"
dh dh2048.pem
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
push "route 10.8.0.1 255.255.255.255"
push "route 10.8.0.0 255.255.255.0"
push "route 192.168.42.0 255.255.255.0"
push "redirect-gateway def1 bypass-dhcp"
push "dhcp-option DNS 192.168.42.1"
push "dhcp-option DNS 8.8.8.8"
client-to-client
keepalive 10 120
cipher AES-256-CBC # AES
comp-lzo
persist-key
persist-tun
status openvpn-status.log
verb 3

client
dev tun
proto tcp
remote xxxxxxxxxxxxx 1195
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client1.crt
key client1.key
remote-cert-tls server
cipher AES-256-CBC
comp-lzo
verb 3

Here's what I've tried to resolve the problem"
- Set the "check" on the LAN networkadapter "Internet sharing"
- Set the registerkey "Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\IpEnableRouter" to "1".
- Set the service "Routing and Remote acces" to "Automatic"
- Checked all the firewall settings (can't find anything wrong)
- Checked to ping the localhost and LAN ipadress of the server (both can be pinged)

I don't know what else to do, so please help me :roll: 😉

Greeting Bob.

TinCanTech

Bob1976 wrote Checked all the firewall settings (can't find anything wrong)

Try disabling the firewall and try again.

Here we have some examples (see bebops posts):
https://forums.openvpn.net/viewforum.php?f=7

Bob1976

Hello TinCanTech,

I've completely disabled all the firewalls and also the virusscanner.... with no result...

I've also set all the settings Bebop sugested (and more) everything that is mentioned here:
https://gist.github.com/ViRb3/98c7cbb0b40d51c9da0965725eeef279

The only thing I can't do is setting a static route in my router... could that be the problem?

The strange thing is that it all worked fine with Windows 10 build 1511...

Do you have any other sugestions? 😉

greetings Bob

TinCanTech

Bob1976 wrote The only thing I can't do is setting a static route in my router... could that be the problem?

The guide you linked to requires the static route.

There is another step you can try:
https://community.openvpn.net/openvpn/wiki/NatHack
https://community.openvpn.net/openvpn/wiki/NatOverWindows2008

Those guides are a bit old but you may be able to twist them to use with W10

Bob1976 wrote The strange thing is that it all worked fine with Windows 10 build 1511

Yeah .. ask Microsoft because I have no idea about that.

The last update I did to W10 was over 1GB .. I don't see how they can even call it Windows any more ..

bbuckm

Bob1976 wrote I recently updated my server pc to Windows 10 build 1803 (before I used build 1511 and it all worked fine).

What about the client? Does it make any difference what kind of device you use as a client?

Bob1976

Hi bbuckm,

No that doesn't make a difference...

@TinCanTech:
I've spent the whole evening trying to get it to work, but no succes... Therefor i have decided to move the server to my Raspberry Pi! Installed it this morning with ease, it's running without a problem now!

So, thanks for all the help, but i just couldn't get it to work under windows 10...

Greetings, Bob.