3com LAC & Cisco LNS. NEED URGENT HELP (L2TP)

[rcasta]

Hello,

Having configured a 3Com access server as LAC and a Cisco router as LNS, I get the following output from debugging vpdn events>

Router#
May 23 08:16:26: L2TP: I SCCRQ from 3COMLAC tnl 158
May 23 08:16:26: Tnl1597 L2TP: New tunnel created for remote 3COMLAC, address 172.30.231.136
May 23 08:16:26: Tnl1597 L2TP: O SCCRP to 3COMLAC tnlid 158
May 23 08:16:26: Tnl1597 L2TP: Control channel retransmit delay set to 1 secon
ds
May 23 08:16:26: Tnl1597 L2TP: Tunnel state change from idle to wait-ctl-reply
May 23 08:16:26: Tnl1597 L2TP: I SCCCN from 3COMLAC tnl 158
May 23 08:16:26: Tnl1597 L2TP: Got a Challenge Response in SCCCN from 3COMLAC
May 23 08:16:26: Tnl1597 L2TP: Tunnel auth failed for 3COMLAC
May 23 08:16:26: Tnl1597 L2TP: Expected
28 21 CE F8 B2 1A 43 BC FD 92 7B 6F EB 78 CA 12
May 23 08:16:26: Tnl1597 L2TP: Got
FA D4 6F 3F 4F 94 79 FF D3 D7 0A 94 DA 4B 20 1E
May 23 08:16:26: Tnl1597 L2TP: O StopCCN to 3COMLAC tnlid 158
May 23 08:16:26: Tnl1597 L2TP: Control channel retransmit delay set to 1 secon
ds
May 23 08:16:26: Tnl1597 L2TP: Tunnel state change from wait-ctl-reply to shut
ting-down
May 23 08:16:26: Tnl1597 L2TP: Shutdown tunnel
May 23 08:16:26: Tnl1597 L2TP: Tunnel state change from shutting-down to idle
May 23 08:16:26: L2X: First AVP on control packet is not message type

Any ideas of what is happening? Both devices have same tunnel password as is.

best regards,