Unable to transfer data from Prep Envorinment to Dev Envoirnment

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Unable to transfer data from Prep Envorinment to Dev Envoirnment

We are using DB Link to fetch the data from  prep to Dev and reciving following errror

 

INSERT INTO  prdev1_srci. SRI_Emp_detailed SELECT * FROM F
OREIGN TABLE (SELECT main.* FROM prep_src_view .emp_newss
tand_detailed main INNER JOIN prod_gcfr_view.gcfr_process_id_log  p1 ON ma
in.process_id = p1.process_id and main.process_name = p1.process_name and 
process_state = 99 and update_ts  < TIMESTAMP '2016-08-01 00:00:00.000000'
)@fxprep data1 ;
*** Failure 7810 [TblOp] Import failed.NodeId:34 AMP:0: Unable to receive c
onnections from remote '164.10.*.11'.
               Statement# 1, Info =0 
*** Total elapsed time was 51 seconds.
 
What could be the possible reasons?