So I have set up the VPN server on my NAS. Settings are first of all the default settings that the NAS provides. Then I exported the configuration files with “Export configuration files”.
Under Gnome the Network Manager is set up and I used the “import from file” function under Gnome when setting up the VPN connection. Then the settings for the VPN connection were also taken over by the system. If I now try to establish the connection, I get the following error message:
TCP/UDP: Preserving recently used remote address: [AF_INET]xx.xxx.xxx.240:1194
nm-openvpn[18382]: UDP link local: (not bound)
nm-openvpn[18382]: UDP link remote: [AF_INET]xx.xxx.xxx.240:1194
nm-openvpn[18382]: NOTE: UID/GID downgrade will be delayed because of --client, --pull, or --up-delay
Nov 29 21:27:48 thorinshalle nm-openvpn[18382]: VERIFY ERROR: depth=2, error=certificate has expired: O=Digital Signature Trust Co., CN=DST Root CA X3, serial=91299735575339953335919266965803778155
nm-openvpn[18382]: OpenSSL: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
nm-openvpn[18382]: TLS_ERROR: BIO read tls_read_plaintext error
nm-openvpn[18382]: TLS Error: TLS object -> incoming plaintext read error
nm-openvpn[18382]: TLS Error: TLS handshake failed
nm-openvpn[18382]: SIGUSR1[soft,tls-error] received, process restarting
nm-openvpn[18382]: SIGTERM[hard,init_instance] received, process exiting
Using the OpenVPN Connect Client on Windows works fine though.
My NAS is the DS920+
DSM 6.2.5-25556 Update 6
I would be very grateful for any ideas and help.
Greetings Bavra