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Winsock Error 10051 Network Unreachable

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WSAECONNREFUSED (10061) Connection refused Connection refused: No connection could be made because the target machine actively refused it. recv() & recvfrom(): socket not bound (for Dgram) or not yet connected (for Stream), or the requested length is zero (whether a length >32K is acceptable as a non-negative value is Is this because of my server side or the recipient server side? The other server might be temporarily down. his comment is here

Format error: Name server was unable to interpret the query. Unfortunately, to find out what these errors mean you need to contact that WinSock provider. Berkeley description: A request to send data was disallowed because the socket had already been shut down with a previous shutdown() call. Is the router up and running (check by pinging it, and then ping an address on the other side of it)? https://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx

Socket Error 10054

Here is a useable macro: #define MAKEWORD(low, high) ((WORD)(((BYTE)(low)) | (((WORD)((BYTE)(high))) << 8))) WinSock functions: WSAStartup(). [Go to Top] Errors in Numerical Order WSABASEERR (0) No Error WSAEINTR (10004) Interrupted system Why isn't my wifi working? A similar problem that some users believe can cause socket error 10051 is when the computer is told not to use any router. This would cause the network to be unreachable, but it yields a different socket error.

  • Alternately, you could call setsockopt(SO_REUSEADDR) to allow duplicate local addresses in a single application, but this is a kludgy approach (i.e.
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  • WSAGetLastError() and WSAIsBlocking() cannot fail.

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. But that's not to say you shouldn't still be prepared. Additional functions: a generic description of the type of functions that can return this error, which may include functions other than those listed by the WinSock specification. Socket Error 10054 Connection Reset By Peer WSAEBADF (10009) Bad file descriptor.

If you used a hostname, did it resolve to the correct address? WinSock functions: WSAEFAULT (10014) Bad address. How can I avoid being chastised for a project I inherited which was already buggy, but I was told to add features instead of fixing it? http://answers.pscs.co.uk/324/socket-error-10051-connection-error-not-in-wiki WSAELOOP (10062) Too many levels of symbolic links A pathname lookup involved more than eight symbolic links. (Too many links were encountered in translating a pathname.)WSAENAMETOOLONG (10063) File name too long

It means there is no IP route configured in Windows to reach the other network. Socket Error Codes Linux If the signal handler performs a normal return, the interrupted function call will seem to have returned the error condition. Configuring the computer to speak with only one router will alleviate this problem. In this case, the 2nd application will fail with WSAEADDRINUSE.

Winsock Error 10053

The Windows Sockets errors are listed in alphabetical order below (they're cross-referenced in a list in numerical order further below). Whether to handle it as a fatal error or non-fatal error depends on the application and the context, so it's up to you to decide. Socket Error 10054 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 What Is A Socket Error Do you have the Winsock DLL that supports the version of the Winsock specification required by the application?

Try a traceroute to the destination address to check that all the routers are functioning. this content 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. Networking activity on the local host has not been initiated. It may also make explicit mention of other functions that can fail with this error. Socket Error 10049

Note the British spelling (with an 'S' instead of a 'Z'). Microsoft C description: Bad file number. Berkeley description: A component of a path name exceeded 255 (MAXNAMELEN) characters, or an entire path name exceeded 1023 (MAXPATHLEN-1) characters. weblink send() & sendto(): socket not bound (for Dgram) or not yet connected (for Stream) The v1.1 specification also has a detailed description for the connect() function which says: "socket not already

Produce Dürer's magic square Does a long flight on a jet provide a headstart to altitude acclimatisation? Socket Error 10061 Connection Refused Handle the request as a non-fatal error (if possible), since some WinSock's can legally fail the request. However, it also occurs when an application passes an invalid pointer value.

before calling connect() or accept()).

Developer suggestion: The simple suggestion is "don't do that." No matter what value you use for the "how" parameter to the shutdown() function, you cannot send afterwards. Any of the Winsock name resolution functions can fail with this error. On a datastream socket, the connection was reset. Winsock Error 10061 A socket already has a type (a protocol), and each sockaddr structure has an address family field to define its format.

For example, you shouldn't necessarily expect to be able to use NS addresses with ARPA Internet protocols. 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. Tue 2007-12-04 17:09:48: * P=010 S=000 D=novonordisk.com TTL=(82) MX=[mail5.nnithosting.com] {217.16.101.198} Tue 2007-12-04 17:09:48: * P=010 S=001 D=novonordisk.com TTL=(82) MX=[mail1.nnithosting.com] Tue 2007-12-04 17:09:48: * P=010 S=002 D=novonordisk.com TTL=(82) MX=[mail2.nnithosting.com] Tue 2007-12-04 17:09:48: check over here Request refused: Name server refuses to satisfy your query for policy reasons.

If you don't have the proper subnet mask, your network system may treat a local address as a remote address (so it forwards addresses on the local subnet to the router, For WinSock, this error is equivalent to Berkeley's EHOSTUNREACH error, the catch-all error for unreachable hosts. "You can't get there from here." TCP/IP scenario: The local network system could generate this 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.WSAEPFNOSUPPORT (10046) Protocol If this tends to occur after running certain applications for a while, it might be a symptom of an application that doesn't return system resources (like memory) properly.

WSAEMSGSIZE (10040) Message too long A message sent on a socket was larger than the internal message buffer or some other network limit. WinSock functions: With a datastream socket: connect() and FD_CONNECT WSAAsyncelect() notification message. WinSock description: Almost same as Berkeley. Developers should consider handling the referenced errors similarly.

This usually results from trying to connect to a service that is inactive on the foreign host. Apparently, the Windows Sockets specification left this out by oversight. User suggestions: Check the obvious first: check that the destination address is a valid IP address. WinSock description: No equivalent in WinSock.

C++11 - typeid uniqueness What commercial flight route requires the most stops/layovers from A to B? I have found theses on a similar subject to my own, and want to use their references with my own text and a similar flow. User suggestions: Some network systems have commands to report statistics. Add your answer Source Submit Cancel Report Abuse I think this question violates the Community Guidelines Chat or rant, adult content, spam, insulting other members,show more I think this question violates

The socket is marked as non-blocking (non-blocking operation mode), and the requested operation is not complete at this time. Some users have more than one router active at the same time. 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 My landlords asst.

Some of these neglected error values are among those mentioned earlier that provide "finer resolution" on different WinSock implementations. This is not a software error, another type of name server request may be successful. This usually means the local software knows no route to reach the remote host.