The RPC server is unavailable. (Exception from HRESULT: 0x800706BA) when connecting to remote computer

Question

I try to connect remote computer by using winforms c#.

My Code:

private void Form1_Load(object sender, EventArgs e)
{
    var connection = new ConnectionOptions();
    connection.Username = "xx";
    connection.Password = "xx";

    var scope = new ManagementScope("\\\\111.111.111.22:6000\\root\\CIMV2", connection);
    scope.Connect();   // Exception occurs here..
}

I get below Error in line scope.Connect();

Error:

An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in System.Management.dll

Additional information: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

Any help will be appreciated.

Can you telnet to this port? Does your firewall and remote machine firewall is also configured to commmunicate through TCP 3389? — , Apr 28 '14 at 07:32
I can connect from remove desktop connection.There is no any problem. — user3580199, Apr 28 '14 at 07:33
I'm also having this problem: Windows Server 2008 R2, all firewalls off, process running as Administrator. A solution to this would be greatly appreciated if anybody has any insight. — Alex Marshall, Aug 14 '14 at 13:26

score 2 · Answer 1 · edited May 23 '17 at 12:05

2

I am pretty sure you did not run this application as administrator.

Thanks to UAC you need to run your application as administrator to get this to work.

See How do I force my .NET application to run as administrator? to read how to add a app.manifest to your application, forcing it to run as administrator.

edited May 23 '17 at 12:05

Community

1
1

answered Apr 28 '14 at 07:34

Patrick Hofman

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Thanks for aswer.I tried to add app.manifest and changed but it displays not administrator. – user3580199 Apr 28 '14 at 07:50
@user3580199: Did you follow the advise in the answer I included? – Patrick Hofman Apr 28 '14 at 07:51
I solved administrator problem.İt displays admin=true. But i still have same error :( – user3580199 Apr 28 '14 at 07:54
@user3580199: Do you have all firewalls turned off, etc? – Patrick Hofman Apr 28 '14 at 07:55
I can connect from remove desktop connection.There is no any problem. – user3580199 Apr 28 '14 at 08:03
@user3580199: But that is a different protocol. Try to disable the firewalls and check again. – Patrick Hofman Apr 28 '14 at 08:04
This worked for me. I was getting the RPC Server is unavailable exception, then after running Visual Studio as administrator, the problem disappeared. – Hagelt18 Oct 10 '14 at 15:53

The RPC server is unavailable. (Exception from HRESULT: 0x800706BA) when connecting to remote computer

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