question regarding clog cpasswd

[Chong Sein Yeo]

Hello there,
  I am trying to set up a coda file system and when i do the following:

clog admin
username: [EMAIL PROTECTED]
Password:

after entering the password i get this:
Invalid login (RPC2_NOTAUTHENTICATED (F)).

Does anyone knows if there is any ways for me to find out what went wrong during the auth?  Thanks
--
Warmest Regards,

Yeo Chong Sein
[EMAIL PROTECTED]