When trying to connect to a VPN server, I get the 691 error code on the client, which say:
Error Description: 691: The remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol is not permitted on the remote access server.
I validated that the username and password are correct. I also installed a certification to use with the IKEv2 security type. I also validated that the VPN server support security method.
But I cannot login. In the server log I get this log:
Network Policy Server denied access to a user.
The user DomainName\UserName connected from IP address but failed an authentication attempt due to the following reason: The remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol is not permitted on the remote access server.
Any idea of what can I do? Thanks in advance!
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 12/29/2010 7:12:20 AM
Event ID: 6273
Task Category: Network Policy Server
Level: Information
Keywords: Audit Failure
User: N/A
Computer: VPN.domain.com
Description:
Network Policy Server denied access to a user.
Contact the Network Policy Server administrator for more information.
User:
Security ID: domain\Administrator
Account Name: domain\Administrator
Account Domain: domani
Fully Qualified Account Name: domain.com/Users/Administrator
Client Machine:
Security ID: NULL SID
Account Name: -
Fully Qualified Account Name: -
OS-Version: -
Called Station Identifier: 192.168.147.171
Calling Station Identifier: 192.168.147.191
NAS:
NAS IPv4 Address: -
NAS IPv6 Address: -
NAS Identifier: VPN
NAS Port-Type: Virtual
NAS Port: 0
RADIUS Client:
Client Friendly Name: VPN
Client IP Address: -
Authentication Details:
Connection Request Policy Name: Microsoft Routing and Remote Access Service Policy
Network Policy Name: All
Authentication Provider: Windows
Authentication Server: VPN.domain.home
Authentication Type: EAP
EAP Type: Microsoft: Secured password (EAP-MSCHAP v2)
Account Session Identifier: 313933
Logging Results: Accounting information was written to the local log file.
Reason Code: 16
Reason: Authentication failed due to a user credentials mismatch. Either the user name provided does not map to an existing user account or the password was incorrect.
I think that's your problem right there. Verify that the account has the correct permissions to connect remotely via RRAS. These links might help you. Note that articles that apply to 2003 may still apply to 2008r2 (according to MSFT). Also note that I make no claim to being a subject matter expert....
http://technet.microsoft.com/en-us/library/cc754634(WS.10).aspx
http://technet.microsoft.com/en-us/library/cc775658(WS.10).aspx
http://technet.microsoft.com/en-us/library/cc759294(WS.10).aspx
http://technet.microsoft.com/en-us/library/dd637783(WS.10).aspx
I had this problem so I'll go ahead and tell you what it was for me. My password (given to us by our host had a
$in it). I was copy-pasting the password from an rdp shell script that had escaped the$with a\. I was mentally forgetting the reason for\and thinking it was literal. I spent hours working on authentication when in reality, I need only remove the back-slash escaping of the dollar sign.Not sure if that's your problem -- but good luck.
I solved this my changing the Dial-In properties of the user. By default it was set to managed by NPS server. Click allow access solved my issue.
As administrator, run netsh ras set trace * enable, then check C:\Windows\tracing\svchost_RASTLS.log
make sure you run netsh ras set trace * disable when you're done troubleshooting.
Also can check VPNIKE.log in that some folder.
Been having same issue. I am the admin and use my connection daily. No changes anywhere. I found a doc somewhere with a kinda similar issue and the solution was to disable IPv6 on the connection. I did it and it worked. It hasn't occurred again.