samba - Nov 2003 - Samba as the Trusting Domain

I have my new samba pdc  setup as the Trusted Domain to my mths domain
and this worked fine.  When I try to make my samba domain as a Trusting
Domain I get the following error.
 
[root@hsfnp01 init.d]# net rpc trustdom establish mths
[2003/11/28 12:10:34, 0] utils/net_rpc.c:rpc_trustdom_establish(1789)
  Couldn't find domain controller for domain MTHS
 
I can ping my domain PDC fine from my samba pdc.  I can ping my nt pdc
like ping pdc or ping the pdc with dns like ping pdc.someco.net and I am
able to ping the pdc .    I am not sure where to start troubleshooting
this.  Any suggestions would be appreciated.
 
Thanks
-Glenn