MSDTC - TransactionManagerCommunicationException

[dodoxor]

Hello, i've implemented an application that read from a local db and write on a server db using a transaction scope. When I try to commit the transaction i receive an exception error : System.Transactions.TransactionManagerCommunicationException: Impossible to comunicate with transaction manager...System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL ... in System.Transactions.Oletx.IDtcProxyShimFactory.ReceiveTransaction(UInt32 propgationTokenSize, Byte[] propgationToken, IntPtr managedIdentifier, Guid& transactionIdentifier, OletxTransactionIsolationLevel& isolationLevel, ITransactionShim& transactionShim) in System.Transactions.TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(Byte[] propagationToken) I've enabled MSDTC on client and server but something is wrong. Please help if you know the solution. Thanks in advance

[dodoxor]

I've resolved. The client open a comunication with the server. Then close the comunication and wait. The server open a new comunication(with a dinamic port number) with the client and try to send information. So if on the client there's a firewall that block msdtc.exe process the comunication failed. So to resolve create a specific rule for the msdtc.exe process on client. Bye.