We are having a small issue in our office this week , on a typical day we would have about 50 outside employees synchronize to our database . All was fine up to last Friday but since then we are seeing the following message in the log file . ERROR : [-10052] The authenticate_user script returned 4000 , I can see from earlier logs that this should be returning 1000 , I'm new to this here as the person responsible actually finished last friday and I'm told they may have done something to make this happen . Can anybody give me some pointers to where I can look to see what might have happened. Thanks in advance.