Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Synology L2TP VPN Won't Work With Windows 7

Posted on 2014-01-20
6
Medium Priority
?
6,287 Views
Last Modified: 2014-01-29
I have successfully configured my Synology Diskstation (Model DS212j running DSM 4.3-3776) as a VPN Server. I settled on the L2TP protocol so that I can access resources on my home network.

Everything works flawlessly when connecting using Windows 8 x64, but on my Windows 7 x64 machine I receive error 766.

See here for more information on this error.

I have tried connecting behind the same firewall from a remote location and I get the same results: Windows 8 connects just fine, Windows 7 does not.

Is there a registry key missing from Windows 7? Or is there a way to generate a client certificate that I am unaware of (that Windows 8 seemed to do automagically)?

I tried looking for any significant difference in the mmc Cert Store snap-in, but nothing really stood out.

Additionally, trying to connect with a PSK (although it looks to be properly configured on the Diskstation) yields a different error for both OSes. Still I'd be happier with the certificate method.

Any help would be greatly appreciated.
0
Comment
Question by:RoloTony
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
6 Comments
 
LVL 26

Expert Comment

by:akahan
ID: 39798835
Don't you need to download and install the certificate from the Synology box?

While this is intended for people using a particular IBM business server, I think the same steps would likely be necessary:

http://pic.dhe.ibm.com/infocenter/ibmfsb/v2r1/index.jsp?topic=%2Fcom.ibm.dashboard.doc%2FadmvpnCertAuthWin7.htm

http://pic.dhe.ibm.com/infocenter/ibmfsb/v2r1/index.jsp?topic=%2Fcom.ibm.dashboard.doc%2Fadmnetcfgwindows7.htm
0
 

Author Comment

by:RoloTony
ID: 39800041
Hm, I see what you're saying, but why didn't I have to do that for Windows 8? Did it automatically pull the certificate?

I'm also confused as to why the PSK option fails to work at all. I am sure I am entering the correct key under the network adapter settings from the client.
0
 
LVL 26

Expert Comment

by:akahan
ID: 39800626
What error is returned when you attempt to use PSK?
0
Will your db performance match your db growth?

In Percona’s white paper “Performance at Scale: Keeping Your Database on Its Toes,” we take a high-level approach to what you need to think about when planning for database scalability.

 

Author Comment

by:RoloTony
ID: 39807183
Error Description: 809: The network connection between your computer and the VPN server could not be established because the remote server is not responding. This could be because one of the network devices (e.g, firewalls, NAT, routers, etc) between your computer and the remote server is not configured to allow VPN connections. Please contact your Administrator or your service provider to determine which device may be causing the problem.

I don't get this problem using the certificate option on Windows 8.1. I get the same error on both Win 7 and 8.1 if I attempt to use the PSK.

I am 99% sure I have these ports forwarded and that the PSK is entered correctly, but I will triple check.
0
 

Accepted Solution

by:
RoloTony earned 0 total points
ID: 39807208
Well, I just figured it out.

Not sure why the PSK doesn't work, but I got Windows 7 to finally connect. I changed require encryption to optional in the advanced settings and it worked.

Thanks for your efforts!
0
 

Author Closing Comment

by:RoloTony
ID: 39817288
I didn't have the proper advanced settings configured.
0

Featured Post

Optimum High-Definition Video Viewing and Control

The ATEN VM0404HA 4x4 4K HDMI Matrix Switch supports 4K resolutions of UHD (3840 x 2160) and DCI (4096 x 2160) with refresh rates of 30 Hz (4:4:4) and 60 Hz (4:2:0). It is ideal for applications where the routing of 4K digital signals is required.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
IF you are either unfamiliar with rootkits, or want to know more about them, read on ....
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
Suggested Courses

660 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question