The underlying provider failed on Commit. RRS feed

  • Question

  • Hello,

    I am having a problem with commit.

    Here is the code where program stuck.

     using (var transaction = DataEngine.Context.Database.BeginTransaction(IsolationLevel.ReadCommitted))
     var createResult = DataEngine.Context.Customer_Modify(BusinessID, cutomerName,usermodified);
    await DataEngine.Context.SaveChangesAsync();
                    catch (Exception ex)
                        // Attempt a rollback
                        catch (Exception nex)

    After running the above code, I check the variable query and found an exception

    The underlying provider failed on Open.

    I've checked:

    1. Connection between server and computer is normal
    2. I can login to the database with username and password 
    3. I have checked the security settings in database (SQL Server) that permission has been granted .
    4. I can able to 'Insert' records but not 'Update'

    Why does this exception happen? I'm using .net 4.5


    Tuesday, April 14, 2015 10:10 AM

All replies

  • Hi SamKri,

    You could try to enabling "Allow Remote Clients" in DTC config.

    You could open the DTC config by running dcomcnfg, Component Services -> Computers -> My Computer -> Distributed Transaction Coordinator -> Right click to  Local DTC -> Security.

    If this is still not working, the issue may be caused by the connectionString, you could share the connectionString with us, we could help you better.


    Youjun Tang

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    Wednesday, April 15, 2015 3:12 AM
  • You need to see if there is a message in the InnerException message property as to what is the problem that caused the exception by using Exception.ToString() to expose the InnerException message if any.
    Friday, April 17, 2015 6:53 PM
  • >You could try to enabling "Allow Remote Clients" in DTC config.

    No.  That's irrelevant.  DTC is not involved in clients connecting to SQL Server.



    Friday, April 17, 2015 7:16 PM