Failed to Login with Ubuntu 11.10

xl2tpd[950]: death_handler: Fatal signal 15 received
Stopping xl2tpd: xl2tpd.
ipsec_setup: Starting Openswan IPsec U2.6.28/K3.0.0-12-generic...
Nov 26 23:49:45 dkan-ThinkPad-T420s ipsec__plutorun: Starting Pluto subsystem...
recvref[22]: Protocol not available
xl2tpd[1975]: This binary does not support kernel L2TP.
Starting xl2tpd: xl2tpd.
xl2tpd[1976]: xl2tpd version xl2tpd-1.2.8 started on dkan-ThinkPad-T420s PID:1976
xl2tpd[1976]: Written by Mark Spencer, Copyright (C) 1998, Adtran, Inc.
xl2tpd[1976]: Forked by Scott Balmos and David Stipp, (C) 2001
xl2tpd[1976]: Inherited by Jeff McAdams, (C) 2002
xl2tpd[1976]: Forked again by Xelerance (www.xelerance.com) (C) 2006
xl2tpd[1976]: Listening on IP address 0.0.0.0, port 1701
Nov 26 23:49:45 dkan-ThinkPad-T420s ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d
Nov 26 23:49:45 dkan-ThinkPad-T420s ipsec__plutorun: 002 added connection description "123"
003 NAT-Traversal: Trying new style NAT-T
003 NAT-Traversal: ESPINUDP(1) setup failed for new style NAT-T family IPv4 (errno=19)
003 NAT-Traversal: Trying old style NAT-T
104 "turn" #1: STATE_MAIN_I1: initiate
003 "turn" #1: ignoring unknown Vendor ID payload [5b362bc820f60007]
003 "turn" #1: received Vendor ID payload [RFC 3947] method set to=109
106 "turn" #1: STATE_MAIN_I2: sent MI2, expecting MR2
003 "turn" #1: ignoring Vendor ID payload [Sonicwall 1 (TZ 170 Standard?)]
003 "turn" #1: received Vendor ID payload [XAUTH]
003 "turn" #1: received Vendor ID payload [Dead Peer Detection]
003 "turn" #1: NAT-Traversal: Result using RFC 3947 (NAT-Traversal): i am NATed
108 "turn" #1: STATE_MAIN_I3: sent MI3, expecting MR3
003 "turn" #1: ignoring informational payload, type IPSEC_INITIAL_CONTACT msgid=00000000
004 "turn" #1: STATE_MAIN_I4: ISAKMP SA established {auth=OAKLEY_PRESHARED_KEY cipher=oakley_3des_cbc_192 prf=oakley_sha group=modp1024}
117 "turn" #2: STATE_QUICK_I1: initiate
003 "turn" #2: NAT-Traversal: received 2 NAT-OA. ignored because peer is not NATed
004 "turn" #2: STATE_QUICK_I2: sent QI2, IPsec SA established transport mode {ESP=>0xe9c73289 <0xf8bf4172 xfrm=3DES_0-HMAC_SHA1 NATOA=none NATD=none DPD=none}
xl2tpd[1976]: Connecting to host xxx.75.xxx.254, port 1701
xl2tpd[1976]: Connection established to xxx.75.xxx.254, 1701. Local: 16227, Remote: 44986 (ref=0/0).
xl2tpd[1976]: Calling on tunnel 16227
xl2tpd[1976]: Call established with xxx.75.xxx.254, Local: 227, Remote: 45723, Serial: 1 (ref=0/0)
xl2tpd[1976]: start_pppd: I'm running:
xl2tpd[1976]: "/usr/sbin/pppd"
xl2tpd[1976]: "passive"
xl2tpd[1976]: "nodetach"
xl2tpd[1976]: ":"
xl2tpd[1976]: "file"
xl2tpd[1976]: "/etc/ppp/123.options.xl2tpd"
xl2tpd[1976]: "ipparam"
xl2tpd[1976]: "xxx.75.xxx.254"
xl2tpd[1976]: "/dev/pts/1"
pppd[2174]: Plugin passprompt.so loaded.
pppd[2174]: pppd 2.4.5 started by root, uid 0
pppd[2174]: Using interface ppp0
pppd[2174]: Connect: ppp0 <--> /dev/pts/1

and i couldn't connect to any internal servers at all. Any clues?

P.S. it was working fine when it was still on 11.04.

thanks,
Desmond