I downloaded Firebird 2 RC5 and last version Replicator.
In log:
...
Connecting "Server"
Connecting "Client1"
Disconnected "Server"
SQL exec error "Unable to complete network request to host "Bla-bla-bla".
Error reading data from the connection" in "SELECT * FROM "REPL$FIELD2"(:SCHEMAID,:SEQID,'',0)"
...
RELATIONS statistic update error (overflow ?) (SCHEMAID:1, GROUPID1, RELATIONID:112)
...
SCHEMATA statistic update error (overflow ?) (SCHEMAID:1)
...
TIBReplicationServerForm.OnException(Sender='TabSheet0'; E.Message:'Dataset open')
...
"Bla-bla-bla" is accessible host.
What is problem?

Thanks.