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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. The specified socket parameter refers to a file, not a socket. WinSock functions: the list of functions that explicitly list this error in the v1.1 Windows Sockets specification. Note the cautionary note in the docs for Shutdown, about reusability of the socket: http://msdn2.microsoft.com/en-us/lib...4x(VS.80).aspx Mike March 3rd, 2008, 10:08 AM dchabaud Re: CSocket::Connect and WSAEISCONN error Dear Mike, - run

For connection-oriented, nonblocking sockets, it is often not possible to complete the connection immediately. No more file handles are available, so no more files can be opened. WSA_OPERATION_ABORTED 995 Overlapped operation aborted. Any attempt to reconnect an active connection will fail with the error code WSAEISCONN.

Winsock Connect

Note that this error occurs rarely since a WinSock implementation cannot reliably detect hardware problems. An invalid value was given for one of the arguments to a function. Server admin sent me a private key to use. Privacy Policy Site Map Support Terms of Use CSocket::Connect and WSAEISCONN error Printable View February 28th, 2008, 12:00 PM dchabaud CSocket::Connect and WSAEISCONN error Hello I have a MFC server and

WSA_QOS_ESDMODEOBJ 11029 Invalid QoS shape discard mode object. I would create a public method (called for example, Initialise() or Enable() returning a boolean. WSAEINTR The blocking Windows Socket 1.1 call was canceled through WSACancelBlockingCall. What Is A Socket Error User suggestions: Check the obvious first: check that the destination address is a valid IP address.

The socket is marked as non-blocking (non-blocking operation mode), and the requested operation is not complete at this time. WinSock functions: accept(), bind(), closesocket(), connect(), gethostbyaddr(), gethostbyname(), gethostname(), getpeername(), getprotobyname(), getprotobynumber(), getservbyname(), getservbyport(), getsockname(), getsockopt(), ioctlsocket(), listen(), recv(), recvfrom(), select(), send(), sendto(), setsockopt(), shutdown(), socket(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(), Added to that, this article will allow you to diagnose any common error alerts associated with Wsaeisconn error code you may be sent. Downloads and tools Windows 10 dev tools Visual Studio Windows SDK Windows Store badges Essentials API reference (Windows apps) API reference (desktop apps) Code samples How-to guides (Windows apps) Learning resources

Usually this occurs when a file descriptor refers to a file or socket that cannot support this operation, for example, trying to accept a connection on a datagram socket. Socket Error 10054 Connection Reset By Peer If you are using a host table exclusively, you'll need to update it to add the destination hostname and address. WSAEPROTOTYPE 10041 Protocol wrong type for socket. See also: WSAEINVAL WSAENOTCONN (10057) Socket is not connected.

  1. Either the socket handle parameter did not reference a valid socket, or for select, a member of an fd_set was not valid.
  2. A socket already has a type (a protocol), and each sockaddr structure has an address family field to define its format.
  3. Berkeley description: A message sent on a socket was larger than the internal message buffer or some other network limit.
  4. A socket operation was attempted to an unreachable network.
  5. WinSock description: The Windows Sockets definition of this error is very different from Berkeley.
  6. With a nonblocking socket, the connection attempt cannot be completed immediately.

Socket Error 10054

Detailed description: select(): fails with WSAENOTSOCK if any socket in an fd_set is an invalid socket handle. 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). Winsock Connect WSA_QOS_TRAFFIC_CTRL_ERROR 11014 QoS traffic control error. Socket Connect Example WSAEDESTADDRREQ 10039 Destination address required.

In some instances, it also refers to the current state of the socket input parameter. The application may be accessing a socket that the current active task does not own (that is, trying to share a socket between tasks), or WSACleanup has been called too many WinSock functions: accept(), bind(), connect(), listen(), send(), sendto(), socket(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(), WSAAsyncGetServByPort(), FD_CONNECT Additional functions: Any other functions that use network system buffer space, like the "database functions", WSAEINVALIDPROVIDER 10105 Service provider is invalid. Wsagetlasterror

WinSock description: Same as Berkeley for host resolution. WinSock description: No equivalent. It is unmoderated and operates on the "public virtue" system. WSAEADDRINUSE The socket's local address is already in use and the socket was not marked to allow address reuse with SO_REUSEADDR.

However, sendto/ WSASendTo and recvfrom/ WSARecvFrom can still be used. Wsagetlasterror 0 Join Now For immediate help use Live now! Repair Guide To Fix (Wsaeisconn) errors you’ll need to follow the 3 steps below: Step 1: Download (Wsaeisconn) Fix Tool Step 2: Left click the “Scan Now” button Step 3: Finally,

WinSock description: Similar to Berkeley & Microsoft C, but in reference to sockets rather than file handles (although the descriptions in the v1.1 specification say "no more file descriptors available").

WSAEAFNOSUPPORT 10047 Address family not supported by protocol family. WinSock description: Partly the same as Berkeley. An application attempts to use an event object, but the specified handle is not valid. Connect() Socket In C 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

Then there is the 'socket' which represents just the individual connection to a particular client. WinSock functions: Additional functions: any function that takes a socket (or file handle) as an input parameter See also: WSAENOTSOCK WSAECONNABORTED (10053) Software caused connection abort. WinSock functions: WSAEUSERS (10068) Too many users. Programming Languages-Other C++ Advertise Here 760 members asked questions and received personalized solutions in the past 7 days.

Such exclusive access is a new feature of Windows NT 4.0 with SP4 and later, and is implemented by using the SO_EXCLUSIVEADDRUSE option. For your disconnection code, try calling Shutdown( both ) before calling Close(). A function fails with WSAEAFNOSUPPORT if the address family referenced in sockaddr is not compatible with the referenced socket's protocol. WSAEISCONN (10056) Socket is already connected.

WSA_NOT_ENOUGH_MEMORY 8 Insufficient memory available. This would occur if WinSock aborts an established connection after data retransmission fails (receiver never acknowledges data sent on a datastream socket). However, The Windows System error codes list thousands of codes due to various kinds of problems, like WSAEISCONN 10056 (0X2748), you can't remember them all. An unrecognized object was found in the QoS provider-specific buffer.

Update I tried to make a MVCE but encountered different symptoms: #define VC_EXTRALEAN #define WIN32_LEAN_AND_MEAN #include #include #include #include #pragma comment(lib, "ws2_32.lib") #include #include #include Alternately, you could call setsockopt(SO_REUSEADDR) to allow duplicate local addresses in a single application, but this is a kludgy approach (i.e. There is no difference between blocking and nonblocking semantics. The listen() call should only be made once, it is the accept() call that is made after the server has served Go to Solution 3 Participants mccarl LVL 35 C++6 Orcbighter

See WSASYSNOTREADY for details. However, they don't need to set the WinSock error value, because there's only one reason for their failure: the input parameter was invalid. Any one of the preceeding actions can end up in the removal or data corruption of Windows system files. The file handle reference is no longer available.

User suggestions: see WSAENETUNREACH for details WinSock functions: Additional functions: Any function that does network I/O. in the U.S. For example, you shouldn't necessarily expect to be able to use NS addresses with ARPA Internet protocols. Try it today:Get Started Now!Q & ADocsBe the first to create an annotation!This constant was not documented by the author.Ask a question about Windows::Error::WSAEISCONN PreviewCancelNeed Help?Trying to understand this code?Know something

The name is not an official host name or alias, or it cannot be found in the database(s) being queried. This error is returned from operations on nonblocking sockets that cannot be completed immediately, for example recv when no data is queued to be read from the socket. This error is also returned if the service provider returned a version number other than 2.0.