The attempt to establish a replication link to a read-only directory partition with the following parameters failed. Directory ...

The attempt to establish a replication link to a read-only directory partition with the following parameters failed. 
 
Directory partition: 
%1 
Source domain controller: 
%4 
Source domain controller address: 
%2 
Intersite transport (if any): 
%5 
 
Additional Data 
Error value: 
%6 %3