This is a regression in Tokyo 10.2.1. The workarounds are:
* do not use Protocol=Local
* use fbclient.dll v 3.0

If needed I can provide a patch.

--
With best regards,
Dmitry

Am 15.08.2017 um 10:40 schrieb Dmitry Arefiev:
I've found the same problem and would be interested in the patch.
Thanks!

I can't find the source files to apply your patch to. Are they included with the Professional Edition of Delphi.

I only have 3 source files in the C:\Program Files (x86)\Embarcadero\Studio\19.0\source\data\firedac folder.
They are: FireDac.Phys.pas, FireDac.Phys.SQLGenerator, and FireDac.Phys.SQLPreprocessor.

In one part of our app, I was able to workaround the issue by removing the Protocol=Local from my connection string; however in another section where we use TFDFBNBackup class to backup our database, we do not connect using a connection string; but rather by filling in the properties of that class, and I can't find a workaround for this case..

e.g.

Backup := TFDFBNBackup.Create(nil);
try
Backup.DriverLink := FDriverLink;
Backup.UserName := FUserName;
Backup.Password := FPassword;
Backup.Host := 'localhost';
Backup.Protocol := ipLocal;
Backup.Level := 0;

Backup.Database := GetDataBaseName;
Backup.BackupFile := GetBackupDatabaseName;

FBackupEvent.ResetEvent;
Backup.Backup;
except
end;