Problem connecting to a pptp vpn server configured by webadmin



Hi here,

I have several pptp server configured by webadmin. I can connect to them from a windows xp desktop but not from my ubuntu 8.04 (and 9.10).
I need to say that with network-manager-applet, I CAN connect to pptp vpn Windows servers.

So here is my test :
1) I first tried to connect from a windows xp to be sure this is not a user/pass problem or network problem
2) from the same network place but on my laptop under Ubuntu 9.04. I configured the VPN with network-manager applet and used the exactly same configuration than the one on the windows (same host name for the server, user and password).

On my network-manager in the advance window :
- everything is checked in authentication method
- use mppe is checked
- BSD compression is not checked
- Deflate is checked
- compress tcp header is checked

Here is the log from /var/log/messages on the client side (network-manager) :
May 18 11:06:59 nm-laptop pppd[11488]: Plugin /usr/lib/pppd/2.4.5//nm-pptp-pppd-plugin.so loaded.
May 18 11:06:59 nm-laptop pppd[11488]: pppd 2.4.5 started by root, uid 0
May 18 11:06:59 nm-laptop pppd[11488]: Using interface ppp0
May 18 11:06:59 nm-laptop pppd[11488]: Connect: ppp0 <--> /dev/pts/2
May 18 11:07:03 nm-laptop pppd[11488]: EAP: Identity prompt "Name"
May 18 11:07:03 nm-laptop pppd[11488]: EAP authentication succeeded
May 18 11:07:03 nm-laptop pppd[11488]: Connection terminated.
May 18 11:07:04 nm-laptop pppd[11488]: Exit.

Here is the log from /var/log/messages ont the server side (webadmin) :
May 18 10:55:34 SoluxBox pppd[31187]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
May 18 10:55:34 SoluxBox pppd[31187]: pppd 2.4.4 started by root, uid 0
May 18 10:55:34 SoluxBox pppd[31187]: Using interface ppp0
May 18 10:55:34 SoluxBox pppd[31187]: Connect: ppp0 <--> /dev/pts/1
May 18 10:55:37 SoluxBox pppd[31187]: EAP: unauthenticated peer name "pcsol_nm"
May 18 10:55:37 SoluxBox pppd[31187]: Connection terminated.
May 18 10:55:37 SoluxBox pppd[31187]: Connect time 0.1 minutes.
May 18 10:55:37 SoluxBox pppd[31187]: Sent 0 bytes, received 0 bytes.
May 18 10:55:37 SoluxBox pppd[31187]: Exit.

I see that the server tells the user pcsol_nm is not authenticated but using the same user and password on the windows xp works.

If there are some other information that can help to debug, tell it to me and I'll give them you back.

Thank you for your help,

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