hi @Clive_A Thanks for your reply. I've now got a little more time to dive into this subject, and I have tested the this on our LAN - it still fails to connect, so the problem doesn't seem to be on...

Hi @Clive_A, to answer your points, The problem, as shown by the extract from the OpenVPN log, is that HMAC authentication fails, which means the OpenVPN client can't establish a session with the...

I have set up OpenVPN (2.6.10) on a Linux server and configured a client on the other side of our router. I forward port 1195 on the router to 1194 (the standard OpenVPN port) on the Linux server,...

I had a look at our configuration in general, and noticed that the external address is differrent from the address that has been set on the WAN interface; would that explain why it doesn't work?...

We do have a public IP, and there is only one router.

@MR.S Thank you for replying. I've deleted the ACL, but it makes no difference, the port still shows up as filtered in nmap.