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The Windows Sockets implementation documentation to be sure all necessary components are currently installed and configured correctly. User suggestions: Do you have the WinSock DLL that supports the version of the WinSock specification required by the application? Now you can add annotations to all of the code listings on Omniref. You cannot use more than one WinSock implementation simultaneously.

WinSock functions: accept(), close socket(), connect(), recv(), recvfrom(), send(), sendto(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(), WSAAsyncGetServByPort() WSAHOST_NOT_FOUND (11001) Host not found Berkeley description: No such host is known. However, there's little distinction between WSAEALREADY and WSAEINVAL since a WinSock DLL cannot tell the difference between an asynchronous operation that has been cancelled and one that was never valid. WinSock description: Either your application hasn't called WSAStartup(), or WSAStartup() failed, or--possibly--you are accessing a socket which the current active task does not own (i.e. If you have more than one WINSOCK DLL on your system, be sure the first one in the path is appropriate for the network subsystem currently loaded.

Winsock Connect

Error codeMeaning WSANOTINITIALISED A successful WSAStartup call must occur before using this function. If DisconnectEx returns while the socket is still in the TIME_WAIT state then you won't be able to connect to a different host using that socket until the wait delay has A socket operation failed because the destination host is down. Most of the text comes from the output from the "man errno" command on Unix.

  1. The name is not an official host name or alias, or it cannot be found in the database(s) being queried.
  2. There are only a few possible causes for this error: you tried to connect to the wrong port.
  3. See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> IObit Performance Security Utilities Store Support ERROR_EAS_NOT_SUPPORTED 282 (0×11A)
  4. An incorrect number of flow descriptors was specified in the QoS structure.
  5. The file handle supplied is not valid.
  6. On a blocking socket, the return value indicates success or failure of the connection attempt.
  7. Berkeley description: A pathname lookup involved more than 8 symbolic links.
  8. A socket operation encountered a dead network.

WSAVERNOTSUPPORTED 10092 Winsock.dll version out of range. If the application is using WSAAsyncSelect to indicate interest in connection events, then the application will receive an FD_CONNECT notification indicating that the connect operation is complete (successfully or not). WSA_QOS_ESDMODEOBJ 11029 Invalid QoS shape discard mode object. What Is A Socket Error To avoid WSAEISCONN 10056 (0X2748) window dialogs, and keep your computer in secure.

Developer suggestions: If you have a network analyzer available, you can quickly check if the destination port number and host address are what you expect. Socket Error 10054 Berkeley description: No equivalent in 4.3 BSD or compatible operating systems. First Name Please enter a first name Last Name Please enter a last name Email We will never share this with anyone. Some of these functions cannot fail, which explains their absence from the error list below.

For more information on debugging problems, see Chapter 13, "Debugging." Errorless Functions Eight of the forty-six functions in the Windows Sockets API are not referenced in any of the "WinSock function" Socket Error 10054 Connection Reset By Peer FileMaker Error Codes Lasso Error Codes MySQL Error Codes Windows System Errors About this database This is a free public resource. WinSock description: Unlike Berkeley Sockets, in WinSock WSAEALREADY means that the asynchronous operation you attempted to cancel has already been canceled. An object with an invalid ObjectLength field was specified in the QoS provider-specific buffer.

Socket Error 10054

This error is returned if either a service provider's DLL could not be loaded (LoadLibrary failed) or the provider's WSPStartup or NSPStartup function failed. etc } 4. Winsock Connect So, for example, if a WinSock implementation doesn't support SOCK_RAW with IPPROTO_IP (or any other protocol), then the socket() call would fail with WSAEPROTONOSUPPORT (however, if it doesn't support SOCK_RAW at Socket Connect Example socket.h: #pragma once //Only process header files once #pragma comment(lib, "WS2_32.lib") //Add "WS2_32.lib" as a linker input #include //Input/output stream #include "WinSock2.h" //Include WinSock using namespace std; //Standard

It is also possible that WinSock might return this error after an application calls connect() a second time on a non-blocking socket while the connection is pending (i.e. Microsoft C description: Permission denied. An operation was attempted on a nonblocking socket with an operation already in progress—that is, calling connect a second time on a nonblocking socket that is already connecting, or canceling an The QoS request was rejected because the policy system couldn't allocate the requested resource within the existing policy. Wsagetlasterror

In some cases these errors are platform dependent. Note: this error may also result if you are trying to send a multicast packet and the default gateway does not support multicast (check your interface configuration). WinSock functions: accept(), bind(), getsockname(), ioctlsocket(), listen(), recv(), recvfrom(), select(), send(), setsockopt(), shutdown(), WSAStartup(), WSAAsyncSelect(), WSACancelAsyncRequest(), WSACancelBlockingCall, FD_CONNECT Additional functions: Any WinSock function that takes input parameters that could be invalid WSAEACCES An attempt to connect a datagram socket to broadcast address failed because setsockopt option SO_BROADCAST is not enabled.   Remarks The connect function is used to create a connection to

Thirteen errors have "" next to the list of WinSock functions that can produce them. Wsagetlasterror 0 The ICMP message means that the router can't forward the IP datagram, possibly because it didn't get a response to the ARP request (which might mean the destination host is down). A function fails with WSAEAFNOSUPPORT if the address family referenced in sockaddr is not compatible with the referenced socket's protocol.

WinSock description: Same as Berkeley, and then some.

WSAEALREADY 10037 Operation already in progress. As you can see from the comprehensive list of WinSock functions, this error is the catch-all. When a problem develops on a connected socket, the application must discard the socket and create the socket again in order to return to a stable point. Connect() Socket In C WinSock description: Same as Berkeley.

This could indicate a serious failure of the network system (that is, the protocol stack that the Windows Sockets DLL runs over), the network interface, or the local network itself. User suggestions: There are a number of things to check, that might help to identify why the failure occurred. This error occurs if you specifically reference a protocol that isn't part of the address family you also reference. Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you!

An application used a Windows Sockets function which directly maps to a Windows function. WinSock description: Same as Berkeley, and then some. Berkeley description: A write to an ordinary file, the creation of a directory or symbolic link, or the creation of a directory entry failed because the user's quota of disk blocks Users should check: That the appropriate Windows Sockets DLL file is in the current path.

Here is a link to a different Wsaeisconn repair program you can try if the previous tool doesn’t work. Is the router up and running (check by pinging it, and then ping an address on the other side of it)? March 3rd, 2008, 11:01 AM MikeAThon Re: CSocket::Connect and WSAEISCONN error Quote: run client, close client, run client again : same error (WSAEISCONN) Yes, that was my point. The error can also occur in an attempt to rename a file or directory or to remove an existing directory.

The more different scenarios that you can create a problem, the easier it is to see what is common to all scenarios, and leads to solution. When a particular Windows Sockets function indicates an error has occurred, this function should be called immediately to retrieve the extended error code for the failing function call. What are these metal clips where my wheel rims meet the tires and what are they for? If it doesn't respond, it might be off-line or there may be a network problem along the way.

Been caught by a tricky bug in the past? If you successfully call WSAStartup then set it to true. WinSock functions: recv(), recvfrom(), send(), sendto() WSAENAMETOOLONG (10063) File name too long. WinSock functions: gethostbyaddr(), gethostbyname(), getprotobyname(), getprotobynumber(), getservbyname(), getservbyport(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(), WSAAsyncGetServByPort(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), See also: WSAHOST_NOT_FOUND, WSANO_RECOVERY, WSATRY_AGAIN WSANO_RECOVERY (11003) This is a non-recoverable error Berkeley description: This is a

If the socket is already connected or an exclusive/multiplexed mode change failed, WSAEISCONN is returned. The only case it is not working is when the client and the server are in different Active Directory trees on the same network domain. WSAEBADF 10009 File handle is not valid. It can also be returned by setsockopt if an attempt is made to set SO_KEEPALIVE on a connection that has already failed.