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Question

809 Error Connecting to L2TP VPN from Win 8.1

Stumped. First attempt setting up a VPN. I've configured the VPN on my Synology NAS, forwarded the necessary ports, etc. I'm able to connect successfully from my Android phone, so I'm pretty confident the server side is right. On the Win 8.1 machine, I have defined the AssumeUDPEncapsulationContextOnSendRule = 2 in the registry, I've set the recommended IKE and IPSec services to automatic, I've turned off IPv6 in the VPN connection configuration. I've also confirmed l2tp passthru is configured on the client-side router. Anyone seen anything else? Help

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Clarification Request
Just one question.

In reply to: 809 Error Connecting to L2TP VPN from Win 8.1

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Au contraire

In reply to: Just one question.

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Oops lets try that link again

In reply to: Au contraire

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I stand corrected.

In reply to: Au contraire

OK, so with that cleared up the next problems I've encountered are:

ISPs block inbound VPN connections. Really painful when they do that. Many already block inbound port 80 connections. Your ISP may deny but still do this.

As a test place the VPN Server into the DMZ entry in the router. Do not use port forward. If it's some port issue this works and tells you where the problem is. I do not work port forward issues as folk too often want me to write step by step instructions.

AssumeUDPEncapsulationContextOnSendRule ? Never had to tinker. Just follow the usual setup instructions, use the DMZ at times and I'm done unless there are other issues to clear up like an overreaching antivirus or firewall in the PC. Many routers have firewalls which are instantly disabled during testing. In short, open roads.

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Android works

In reply to: I stand corrected.

Hey, can't try the DMZ as I'm away from home this weekend, however, I can connect successfully from my phone across the public network . Would that not suggest the ISP is not blocking inbound VPN connections?

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Again, you are right.

In reply to: Android works

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Maybe Win 10

In reply to: Again, you are right.

Pulled down the OpenVPN client and installed, but it looks more involved than I've got time for right now. On the advice of a friend, and to resolve outstanding complaints from my wife, I'm going to try upgrading the machine to Win 10 and see if Ifare any better. This weeekend's pretty much shot anyway Sad

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Update

In reply to: Again, you are right.

Checked out the OpenVPN server on the synology tonight and found an "export configuration" button that made client configuration straightforward, so I gave it a shot. Bingo! Thanks R. Proffitt!

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Thanks.

In reply to: Update

Sounds like the old "introduction" problems. "Client meet Server" and "Server meet Client."

I don't do this setup often enough and the products are newer than I've encountered but I try anyway.

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