Hi to all
I have also tried to connect and, indeed, the certificate has expired ("VERIFY ERROR: depth=1, error=certificate has expired: O=AMPRnet, CN=OH7LZB VPN service CA, serial=15176845288007500179")
There is also the problem that the key was generated with an old version of OpensSSL and in modern versions (in my case I use Fedora 38) it fails with: OpenSSL: error:0A00018F:SSL routines::ee key too small:
In the latter case it can continue working with the option: tls-cipher DEFAULT:@SECLEVEL=0
In any case, the certificate is no longer valid.
Does the VPN service still exist? If not, they should remove the Howto from the documentation.