Execute (3): communication with server [mtc-m21b.sid.inpe.br 804] doesn't start (using async value 0) while trying to execute the command:
GetOptimizedListOfSites 8JMKD3MGP3W34P/3N36DK2 sid.inpe.br/mtc-m21b/2013/09.26.14.25.22 @q&WWtY!Y
errorInfo:
--StartCommunication: communication with server [mtc-m21b.sid.inpe.br 804] doesn't start:
--couldn't open socket: connection refused
    while executing
"socket $host $port"--

    invoked from within
"StartCommunication $serverName $urlibPort $async2 $encodingName"--