VPN - problém

Prosím nejakého ochotného znalca poradiť s problémom:
potrebujem sa pripájať cez VPN z domu na server do práce.
Na serveri beží: Widows Server 2003 R2 Standard Edition.
Doma mám: Greenie 2008-10-24, jadro 2.6.27-11-generic, prostredie Gnome 2.24.1, client pptp pptp-linux 1.7.2-1

Po spustení pripojenia sa po chvílke objaví hláška "VPN spojenie zlyhalo."
Pritom pripojenie z Windows cez VPN ide bez problémov :(

Skúšal som nejaké kombinácie nastavení, ale nepodarilo sa mi zatiaľ trafiť tú správnu :(
Posledne som skúšal podľa návodu z:
http://www.cmsimike.com/blog/2008/11/16/connect-to-a-windows-vpn-pptp-from-ubuntu-810-intrepid-ibex/

Ďakujem za ochotu.

Prikladám výpis z /var/log/syslog
Feb 7 18:05:45 mflinux NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
Feb 7 18:05:45 mflinux NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started (org.freedesktop.NetworkManager.pptp), PID 5435
Feb 7 18:05:45 mflinux NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' just appeared, activating connections
Feb 7 18:05:45 mflinux NetworkManager: <info> VPN plugin state changed: 1
Feb 7 18:05:45 mflinux NetworkManager: <info> VPN plugin state changed: 3
Feb 7 18:05:45 mflinux NetworkManager: <info> VPN connection 'VPN spojenie 2' (Connect) reply received.
Feb 7 18:05:45 mflinux pppd[5436]: Plugin /usr/lib/pppd/2.4.4/nm-pptp-pppd-plugin.so loaded.
Feb 7 18:05:45 mflinux pppd[5436]: pppd 2.4.4 started by root, uid 0
Feb 7 18:05:45 mflinux pptp[5438]: nm-pptp-service-5435 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Feb 7 18:05:45 mflinux pppd[5436]: Using interface ppp0
Feb 7 18:05:45 mflinux pppd[5436]: Connect: ppp0 <--> /dev/pts/0
Feb 7 18:05:45 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Feb 7 18:05:45 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Feb 7 18:05:45 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Feb 7 18:05:46 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Feb 7 18:05:46 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Feb 7 18:05:46 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 59193).
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 0
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:953]: send_accm is 00000000, recv_accm is FFFFFFFF
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported!
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 0
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:953]: send_accm is FFFFFFFF, recv_accm is FFFFFFFF
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported!
Feb 7 18:05:47 mflinux pppd[5436]: LCP terminated by peer (ykQ ^@<M-Mt^@^@^BM-3)
Feb 7 18:05:47 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_disp:pptp_ctrl.c:912]: Received Call Clear Request.
Feb 7 18:05:50 mflinux NetworkManager: <info> VPN plugin failed: 1
Feb 7 18:05:50 mflinux pppd[5436]: Connection terminated.
Feb 7 18:05:50 mflinux pppd[5436]: Modem hangup
Feb 7 18:05:50 mflinux pptp[5438]: nm-pptp-service-5435 warn[decaps_hdlc:pptp_gre.c:204]: short read (-1): Input/output error
Feb 7 18:05:50 mflinux pptp[5438]: nm-pptp-service-5435 warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Feb 7 18:05:50 mflinux pptp[5445]: nm-pptp-service-5435 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Feb 7 18:05:50 mflinux pptp[5445]: nm-pptp-service-5435 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Feb 7 18:05:50 mflinux pptp[5445]: nm-pptp-service-5435 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Feb 7 18:05:50 mflinux pppd[5436]: Exit.
Feb 7 18:05:50 mflinux NetworkManager: <info> VPN plugin failed: 1
Feb 7 18:05:50 mflinux NetworkManager: <info> VPN plugin state changed: 6

Koniec som musel odmazať, lebo som prekročil max. dlžku príspevku.