Windows 10 Mobile not working w/ L2TP

[dmor]

Hi all,

I just got a Microsoft Lumia 950. It runs the new Windows Mobile 10 (i.e. Windows Phone 10 that uses the more common code-base as other Windows 10 OSs).

Anyway, I am unable to connect to the IPSec L2TP VPN provided by Untangle NG 11.2. It worked perfectly on my Lumia 925 running Windows Phone 8.1.

I'm suspecting this is a Windows 10 Mobile problem and not an Untangle problem.

However, some research I've done gives the impression that the error could be caused by a mismatch on the L2TP client/server using MSCHAP & MSCHAPv2 (i.e. either side using one of these, rather than both using MSCHAPv2).

Do we know what version Untangle NG is using?

FYI the error I get on my phone is:

The VPN connection failed with error code 812.

Thanks in advance for any help you can render.

Regards,
-
Doug

[dmor]

Here's what I see in the NG L2TP logs (note I have replaced the client's actual public IP with 1.2.3.4):

I have noted in bold red the line that I am most interested in. I don't know what would cause the control_finish. Is that initiated by the client or the L2TP server on the Untangle.

Nov 28 21:15:49 untangle xl2tpd[15006]: control_finish: Connection closed to 1.2.3.4, port 1701 (), Local: 33426, Remote: 9
Nov 28 21:15:49 untangle xl2tpd[15006]: Terminating pppd: sending TERM signal to pid 7622
Nov 28 21:15:49 untangle xl2tpd[15006]: control_finish: Connection closed to 1.2.3.4, serial 0 ()
Nov 28 21:15:48 untangle xl2tpd[15006]: Call established with 1.2.3.4, Local: 51742, Remote: 1, Serial: 0
Nov 28 21:15:48 untangle xl2tpd[15006]: "/dev/pts/1" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "/etc/ppp/options.xl2tpd" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "file" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "untangle-l2tp" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "name" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "auth" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "172.16.99.1:172.16.99.2" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "nodetach" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "passive" 
Nov 28 21:15:48 untangle xl2tpd[15006]: "/usr/sbin/pppd" 
Nov 28 21:15:48 untangle xl2tpd[15006]: start_pppd: I'm running: 
Nov 28 21:15:48 untangle xl2tpd[15006]: result_code_avp: result code not appropriate for Incoming-Call-Request.  Ignoring.
Nov 28 21:15:48 untangle xl2tpd[15006]: Connection established to 1.2.3.4, 1701.  Local: 33426, Remote: 9 (ref=0/0).  LNS session is 'default'

[dmor]

Opened a thread with Microsoft here. Not expecting too much help, but am trying anyway:
http://answers.microsoft.com/en-us/m...=1448771390128