Ms Vpn Error 835
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The Remote Connection Was Not Made Because The Attempted Vpn Tunnels Failed Windows 10
have having problems on the certificate side of things. I have installed a commercial certificate on the TMG server that has the
The L2tp Connection Attempt Failed Because The Security Layer Windows 10
"Server Authentication" EKU and has the DNS name of the server in the SAN (Subject alternative name). On the client side, the client is domain joined and has a computer and user certificate from the Microsoft
Error 789 The L2tp Connection Attempt Failed Windows 8
internal PKI set up on the domain and these were provisioned through AD auto-enrollment. When I try and connect to the VPN server with L2TP with a Windows 7 client, I always get Error 835: The connection attempt failed because the security layer could not authenticate the remote computer. This could be becuase one or more fields of the certificate presented by the remote server could not be validated as belonging to the network connection between your computer and the vpn server was interrupted the target destination. I can't "see" what certifcate TMG is presenting to the client in order to determine whether it is an appropriate certificate or not. Items to note: The TMG server has several certificates installed for OWA, OMA, VPN etc The TMG is in an array configuration (2 nodes), each array member has identical cerificates installed TMG is also configured for PPTP and SSTP VPN protocols (SSTP and PPTP work as expected) L2TP with a pre-shared key works fine, but we would like to use certificates not pre-shared keys The TMG L2TP certificate is from a commercial certification authority The client machine and user certificate is provisioned by internal PKI - ADCS I've read loads of guides on TMG/ISA L2TP but I can't understand why I'm getting certificate errors when I've properly provisioned a server certificate. Can anyone help? Thanks Sunil Thursday, November 18, 2010 2:55 PM Reply | Quote All replies 0 Sign in to vote This sounds like the certificate doesn't have the OID for IPSec usage. Please look at http://technet.microsoft.com/en-us/library/cc737812(WS.10).aspxto see if the cert contains the OID for 1.3.6.1.5.5.8.2.2.Brennan Crowe Proposed as answer by Brennan CroweEditor Wednesday, March 09, 2011 11:00 PM Wednesday, March 09, 2011 10:56 PM Reply | Quote Answerer 0 Sign in to vote I am currently bu
Chris (Microsoft) Technical Consultant/SI GROUP SPONSORED BY MICROSOFT TECHNOLOGY IN THIS DISCUSSION Join the Community! Creating your account only takes a few minutes. Join Now Hope the l2tp connection attempt failed windows 10 somone can help me with this one... I've setup a L2TP/IPSec VPN server using the network connection between your computer and the vpn server was interrupted windows 10 MS RRAS and am hoping to use certificates for authentication, but when I am connecting a get error 835 - the connection was prevented because of a policy configured on your ras/vpn windows 10 which is due to the server presenting the wrong certificate. I can confirm this, as if I connect (Internally) to my VPN server, using the hostname VPN.company.local, it connects ok. If I https://social.technet.microsoft.com/Forums/forefront/en-US/3993f0fe-5252-41e3-b286-b7c4d626fc40/tmg-array-l2tp-vpn-certificate-error-835 connect using the external hostname VPN.company.com, I get the error 835. If I go into the advanced IPSec settings, and uncheck the "Verify the name and usage attributes of the servers certificate", it will connect fine, no matter if I use the .com or .local hostnames. In my local computer certificate management on the VPN server under personal/certificates, I have one for vpn.company.local (Which I enrolled https://community.spiceworks.com/topic/153110-ipsec-l2tp-server-certificate for from our domain CertificateServices server), and also another certificate for vpn.company.com - which is from an external certification authority (StartSSL), then imported into the certificate store on the VPN server. So as far as I can see, RRAS is using the wrong certificate - how can I force it to use the .com one? Any ideas? Reply Subscribe RELATED TOPICS: Certificate for an IPsec VPN Exchange server certificate issue. Windows Server Certificate generate   1 Reply Serrano OP Chris PM Sep 6, 2011 at 1:10 UTC Have you tried manually deleting the remote cert and installing the correct one? 0 This discussion has been inactive for over a year. You may get a better answer to your question by starting a new discussion. Text Quote Post |Replace Attachment Add link Text to display: Where should this link go? Add Cancel × Insert code Language Apache AppleScript Awk BASH Batchfile C C++ C# CSS ERB HTML Java JavaScript Lua ObjectiveC PHP Perl Text Powershell Python R Ruby Sass Scala SQL VB.net Vimscript XML YAML Insert Cancel Join me to this group Reply × Users who spiced this post Read th
Error 789, Error 835, Incoming Connection, IPSec, L2TP, NAT traversal, NAT-T, VPN, VPN Server, windows xp pro Comments (29) nce upon a time I wanted to be able to VPN in to my home network. I researched a bit and discovered https://rotwhiler.wordpress.com/tag/error-835/ that my Windows XP Pro computer could be set up natively as a VPN server. http://forums.isaserver.org/L2TP_Certificates/m_2002105358/tm.htm I followed the built-in wizard, forwarded the appropriate ports on my router, and was up and running. But, the VPN connection only worked with the PPTP protocol and I wanted to be able to use L2TP/IPSec, because of its stronger security. The XP documentation says it supports L2TP, but it's not so easy to set up, because of lack of documentation, and windows 10 lack of default support for NAT traversal (apparently, Microsoft thought that this feature was a vulnerability, because they removed it by default in SP2.) This is my most ambitious Technical Bedtime Story yet. The solution took days of googling and experimenting to get just right, but it works (by all means, please let me know if you know of a better way to do this). Here's are the steps; I used Windows XP Pro as the VPN server the l2tp connection and Windows Vista as the VPN client: Create an Incoming Connection on Windows XP Pro Go to Control Panel/Network Connections Click on Create a New Connection Select "Set up an advanced connection", click Next Select "Accept incoming connections", click Next, Next Select "Allow virtual private connections", click Next Check the user you want to be able to connect, click Next Select "Internet Protocol (TCP/IP)", click Properties Check "Allow callers to access my local area network" Select "Specify TCP/IP addresses" Add two addresses from your local range, click OK, Next, Finish Use Simple Authority to create a computer certificate on Windows XP Pro Download and Install Simple Authority Use Simple Authority to create a Certificate Authority (CA) and then a certificate. (It should put two certificates on your Desktop, with .cer and .p12 extensions) Import the certificate on Windows XP Pro Go to Start/Run Type "mmc", click OK In the window that pops up, click File/AddRemove Snap-in, click Add Select "Certificates", click Add Select "Computer account", click Next Select "Local Computer", click Finish, Close, OK Expand the Certificates folder Right click the Personal folder, then All Tasks/Import, click Next Click Browse and find the certificate you created (pick the certificate with the .P12 extension), click Open, Next Put in the password you used when you created the certificate in Simple Authority Check "Mark this key as exportable", click Next, Next, Finish Navigate to Personal
| Address Book | Member List | Search | FAQ | Ticket List | Log Out L2TP Certificates Users viewing this topic: none Logged in as: Guest Tree Style Printable Version All Forums >> [Threat Management Gateway (TMG) 2010] >> General >> L2TP Certificates Page: [1] Login Message << Older Topic Newer Topic >> L2TP Certificates - 14.Dec.2010 9:01:59 AM pbradey Posts: 20 Joined: 23.May2001 From: Chesterfield, UK Status: offline Hi, I've setup a L2TP VPN using a webserver certificate as in Debi's article. The problem I'm having is that the TMG is publishing several SSL websites and so already has several webserver certificates installed. When the client tries to connect I get error 835: can not authenticate remote computer. It appears that TMG is using the wrong certificate for the address I'm accessing. e.g. I'm using the URL vpn.mycompany.com and the TMG is using the certificate sharepoint.mycompany.com I can't find where to configure: Which external IP address to listen on for L2TP - Its using all external I want to assign a specific certificate for L2TP. Thanks, Phil. Post #: 1 Featured Links* RE: L2TP Certificates - 14.Dec.2010 9:38:49 AM IanC Posts: 338 Joined: 11.Jul.2007 From: UK Status: offline Hi Phil, For L2TP/IPSec, you'll need a machine certificate for VPN server and each client. You can use Autoenrollment to install these. Ian _____________________________Ian Currie nAppliance TMG/UAG Appliances - EMEA www.surefront.co.uk (in reply to pbradey) Post #: 2 RE: L2TP Certificates - 14.Dec.2010 6:30:43 PM Jason Jones Posts: 4663 Joined: 30.Jul.2002 From: United Kingdom Status: offline Stop the TMG control service and then amend the certificate binding configuration in RRAS. Once done, restart the TMG control service. Cheers JJ _____________________________Jason Jones | Forefront MVP | Silversands Ltd My Blogs: http://blog.msedge.org.uk/ and http://blog.msfirewall.org.uk/ (in reply to IanC) Post #: 3 RE: L2TP Certificates - 15.Dec.2010 3:16:27 PM adimcev Posts: 380 Joined: 19.Oct.2008 Status: offline Maybe you can apply this ISA trick(Win 2003 API) for TMG(Win 2008 API): http://carbonwind.net/blog/post/ISA-Server-2006-as-a-VPN-server-and-the-selection-of-the-certificate-to-be-used-for-IKE-authentication-for-L2TPIPsec-connections-e28093-a-possible-work-around.aspx Thanks, Adrian _____________________________Blog: http://www.carbonwin