I had VPN up and runnig without any Problem before. then I changed to letsencrypt and for that I renamed my box to a public name. since then I can't establis a tunnel anymore.
I don't see any errormessages neiter in firewall log nor in messages.
this is the output of the VPN Client:
OpenVPN 2.3.12 x86_64-w64-mingw32 [SSL (OpenSSL)] [LZO] [PKCS11] [IPv6] built on Oct 10 2016
Windows version 6.2 (Windows 8 or greater) 64bit
library versions: OpenSSL 1.0.1u 22 Sep 2016, LZO 2.09
MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:25340
Need hold release from management interface, waiting...
MANAGEMENT: Client connected from [AF_INET]127.0.0.1:25340
MANAGEMENT: CMD 'state on'
MANAGEMENT: CMD 'log all on'
MANAGEMENT: CMD 'hold off'
MANAGEMENT: CMD 'hold release'
WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Socket Buffers: R=[65536->65536] S=[65536->65536]
UDPv4 link local: [undef]
UDPv4 link remote: [AF_INET]192.168.178.1:1194
TLS: Initial packet from [AF_INET]:1194, sid=fcc3ff66 d08594e5
VERIFY OK: depth=0, CN=NethServer,
TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
TLS Error: TLS handshake failed
SIGUSR1[soft,tls-error] received, process restarting
any help ot hint would be appreciated.
NethServer Version: 6.8