VPN Server 2012 - unable to connect

Hi Experts,

I have configured an L2TP VPN on my windows 2012 server. I have configure my mac client and it connects no problems. I try to configure my windows client and i receive error 809 cannot connect speak to your network administrator.

Any advise would be welcomed.

Thanks in advance.
isdd2000Asked:
Who is Participating?
 
Berkson WeinTech FreelancerCommented:
Sure PPTP will work, but MUCH more secure and easier to use from more locations is SSTP, Microsoft's proprietary newish technology.  It has you use a SSL certificate installed on the host, so your client knows where it's connecting to is legit and it uses port 443 (https) so it'll work from about everywhere, even where they have port 1723 and GRE (needed for PPTP) blocked.

Downside, is that it requires Windows for now (maybe there's 3rd party clients that I don't know about).
0
 
cgreinerCommented:
Not helpful, but I have the same problem. The server in question is behind a NAT firewall and does not have a public IP address directly assigned to a network interface.
0
 
RobOwner (Aidellio)Commented:
Sounds like the windows client may be firewalling the connection.  Have you tried disabling the firewall on the client?
0
On-Demand: Securing Your Wi-Fi for Summer Travel

Traveling this summer?Check out our on-demand webinar to learn about the importance of Wi-Fi security and 3 easy measures you can start taking immediately to protect your private data while using public Wi-Fi. Follow us today to learn more!

 
Berkson WeinTech FreelancerCommented:
Out of the box, MS workstations don't support L2TP when the server is behind a NAT router.  Is yours?

See general info here: http://support.microsoft.com/kb/926179 

Hope this gets you started...
0
 
Aaron TomoskySD-WAN SimplifiedCommented:
Weinbark is correct, howerer another workaround is to use PPTP (for all or just for windows workstations). It works fine through NAT without client changes. Or you can get a router that allows you to terminate your vpn connections there. For example I have setup a sonicwall configured to auth to your active directory but terminate the vpn at the router.
0
 
isdd2000Author Commented:
Hi Guys,

It is behind a NAT, its just a standarded modem but it is running NAT - will try the registry changes and get back to you.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.