Execute Teradata Stored Procedure from SAS

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Execute Teradata Stored Procedure from SAS

Been attempting to execute an SP from SAS using: 

 Libname td teradata server="nn.nnn.nnn.nnn"

user=xxxxxxx password="xxxxxxxx" schema=xxxxx

connection=global cast=yes dbcommit=0;

PROC SQL;

   execute (call td.SP_01('Test_ID2', '77', 0);) by teradata;

QUIT;

/*--------------------------------------------------------------*/

nothing has worked so far.   With the above syntax, getting this error msg:

   ERROR: Teradata connection: MTDP: EM_NOHOST(224): name not in HOSTS file or names database

Please assist.

thanks Danl