Connecting to a non-local server

Hello,

I have been using the sybase module to connect to my local Sybase server for
a few weeks.  Now I am trying to use it to connect to a non-local server on
port 3105.

I thought the correct call was something like --

d = Sybase.connect( 'hosttname:3105', user='user', passwd='pass',
database='dbname' )

-- but after many different attempts at that command, I keep getting the
error --

Sybase.DatabaseError: Layer: 6, Origin: 8
ct_connect(): directory service layer: internal directory control layer
error: There was an error encountered while binding to the directory
service.

-- Can anyone advise me on how to overcome this problem?

Thanks,
David.