[Solved] TLS Error: TLS handshake failed

[nf3PSZf4TDa6GU 0]

Hi,

 

I use OpenVPN on archlinux and update-resolv-conf and I also added following line to the ovpn (which I got from the generator):

script-security 2
up /etc/openvpn/update-resolv-conf
down /etc/openvpn/update-resolv-conf

A couple of weeks ago it worked, but now when I use following then I get an error:

sudo openvpn AirVPN_United-Kingdom_UDP-443.ovpn

Error:

Tue Aug 18 19:35:25 2015 OpenVPN 2.3.6 i686-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [MH] [IPv6] built on Dec  2 2014
Tue Aug 18 19:35:25 2015 library versions: OpenSSL 1.0.2d 9 Jul 2015, LZO 2.09
Tue Aug 18 19:35:25 2015 Control Channel Authentication: tls-auth using INLINE static key file
Tue Aug 18 19:35:25 2015 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Aug 18 19:35:25 2015 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Aug 18 19:35:25 2015 Socket Buffers: R=[163840->131072] S=[163840->131072]
Tue Aug 18 19:35:25 2015 UDPv4 link local: [undef]
Tue Aug 18 19:35:25 2015 UDPv4 link remote: [AF_INET]94.229.74.90:443
Tue Aug 18 19:36:25 2015 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Tue Aug 18 19:36:25 2015 TLS Error: TLS handshake failed
Tue Aug 18 19:36:25 2015 SIGUSR1[soft,tls-error] received, process restarting
Tue Aug 18 19:36:25 2015 Restart pause, 2 second(s)

 

I also tried to download the config file again and to add the three lines from above, but still same error.

 

Where is the problem here???

[nf3PSZf4TDa6GU 0]

The TLS Error: TLS handshake failed is probably due to ports not open, right?

 

Because I was still in the office when I tried it... And a couple of weeks ago it was working, but it seems that they changed something. So it was not working anymore.

Now at home it works

[InactiveUser 188]

Well, looks like the corporate firewall doesn't like outbound UDP/443. Try TCP on 443, or SSL Tunneling.

And - don't get fired

[nf3PSZf4TDa6GU 0]

Thanks for your answer!
 

No, no problem I work at a university. They should accept curious people trying things out

(as long as it is not illegal)