pand[6444] protocol error(71)

Hi,

I am trying to connect my ubuntu laptop with my windows desktop that has 
a bluetooth dongle using `pand` when I am getting the below mentioned 
error. The following  is the way  I am proceeding.

$ hcitool scan
Scanning ...
        00:06:C9:90:02:1D       BLACK
$
$ sudo l2ping 00:06:C9:90:02:1D
Ping: 00:06:C9:90:02:1D from 00:1A:6B:20:29:A5 (data size 44) ...
44 bytes from 00:06:C9:90:02:1D id 0 time 32.96ms
44 bytes from 00:06:C9:90:02:1D id 1 time 9.08ms
44 bytes from 00:06:C9:90:02:1D id 2 time 27.08ms
3 sent, 3 received, 0% loss
$
$ pand --connect 00:06:C9:90:02:1D

The following are the details of the messages I am getting in `syslog`.

Mar  5 11:00:27 localhost pand[8103]: Bluetooth PAN daemon version 3.9
Mar  5 11:00:27 localhost pand[8103]: Connecting to 00:06:C9:90:02:1D
Mar  5 11:00:30 localhost hcid[6376]: link_key_request 
(sba=00:1A:6B:20:29:A5, dba=00:06:C9:90:02:1D)
Mar  5 11:00:30 localhost pand[8103]: Connect to 00:06:C9:90:02:1D 
failed. Protocol error(71)

I searched a lot on google for this but didn't get any solution. As a 
result any help in this regard would be highly appreciable.

Regards,
Chetan

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