Hi John Thanks again for your help here, I have found your older thread where you were discussing this and developing your ideas for this script, that is a damn fine thread btw and I'm a bit embarassed I didnt find it before... https://forum.netgate.com/topic/157520/openvpn-client-cascade/46 for anyone else reading (who is also an idiot who cant use search), its a very solid description of the process for manually setting up a nested VPN. I will have to look into this script a bit more, it seems to automate the later steps nicely but im not sure I understand all the details, especially the "Don't pull routes" settings, more research required. All the best mate

@jeangirgis said in V21.02 openvpn not working Netgate SG-2440: OpenVPN clients do not work Hi, Exactly where? The client installed on NGFW? (for example to a VPN provider's server) Can you elaborate on this?

I finally solved it. The LAN subnet on both sites must not be identical. After changing the LAN subnet on one of the two sites (so they differ) it works like a charme. Further reading: https://blog.matrixpost.net/pfsense-site-to-site-ipsec-vpn-same-subnet-on-each-site/

@ptz-m Server's were still on openvpn 2.4, which seems not capable of fully disabling it, after updating to 2.5 and setting 'allow-compression no' the warning is gone.

@jimp Did you get that working somehow? I tried send via Microsoft NPS server (Radius) the Cisco Vendor Attribute "ip:route 10.0.0.0 255.255.255.0 192.168.1.1 100" from somewhere, but I am not sure if that is the correct format, as could not find specific/clear documentation.

I tried to deal with this problem independently, but unfortunately, it didn't work out. For some reason, I didn't contact the PC engineer on this issue but changed my vps server to another windows server vps, and it seems that there were no more errors. The next time such errors occur, I will contact an engineer who will tell me what is wrong and how to solve this problem. The problem is that I don't always have the money to pay for the work of an engineer, and I want to continue to work comfortably. It's good that now there are many good vps servers, and everyone can choose the best one for themselves.

@zabi Hi! Thanks for that, but I'm not at the site and won't get crazy changing stuff. And when I get a chance to be at the site I'm going to just replace the VM HDD with a 2.4.5 version. Weird thing, today it behave as expected.

@viragomann Hi virgomann thank you very much, that did the trick. :)

I now applied the patch from: https://redmine.pfsense.org/issues/11829 and it seemed to help.

Probably this: https://redmine.pfsense.org/issues/11545

@ptz-m For me restarting the service from web GUI didn't work. It was crashing within seconds. It only came back after a full firewall reboot.

I am facing issue with TAP config, there is a server location in inside the pfsense network, using tap we are accessing that server from outside the network from different locations and different system, the issue is, some users able to access the server few of them are not, the users who are unable to access server are able to access other VPN clients.

@viragomann I see. I can ping and route from LAN successfully. I can not ping or route from openVPN.

@shaw22 I would add reneg-sec 0 on the client so the server is controlling if you choose to change it in the future.