How To Fix Winsock Error 10051 Network Unreachable Tutorial


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Winsock Error 10051 Network Unreachable

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You could use this to verify that you're receiving TCP resets or ICMP Port Unreachable packets each time you attempt to connect. WinSock description: Same as Berkeley, except WinSock doesn't support the sendmsg() function, and some WinSock implementations are not so strict as to require an application with a datagram socket to "disconnect"--by Berkeley description: An attempt was made to access a file in a way forbidden by its file access permissions. Tue 2007-12-04 17:10:09: * D=mail2.nnithosting.com TTL=(8) A=[217.16.101.195] Tue 2007-12-04 17:10:09: Attempting SMTP connection to [217.16.101.195:25] Tue 2007-12-04 17:10:09: * 217.16.101.195 in connection failure cache for up to 5 minutes due to http://nbxcorp.com/socket-error/winsock-error-10051-the-network-is-unreachable.html

This is not a temporary error. Any application that uses a blocking socket or calls any blocking functions must handle this error. This error signifies that an attempt was made to access a file (or, in some cases, a directory) in a way that is incompatible with the file's attributes. If a Winsock implementation has an upper limit to the number of simultaneous tasks it can handle, an application's initial call to WSAStartup could fail with this error.WSAEUSERS (10068) Too many https://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx

Socket Error 10054

It may also make explicit mention of other functions that can fail with this error. Developer suggestions: for protocols and services consider using a hard-coded value for the protocol number or service port number in case your resolution attempt fails, and you can have your cake If you are using a host table exclusively, you'll need to update it to add the destination hostname and address.

  1. WinSock functions: With a datastream socket: connect() and FD_CONNECT WSAAsyncelect() notification message.
  2. Does profunda also mean philosophically deep?
  3. The WinSock API does not provide any way to select specific name resolution protocols, server address, or record type.
  4. 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).
  5. For instance, if the length of a struct sockaddr is not equivalent to the sizeof(struct sockaddr).

you didn't call setsockopt(SO_BROADCAST)). Developer suggestions: You need to be prepared to handle this error on any functions that reference blocking sockets, or any calls to blocking functions, if you allow the user to cancel vpop3 asked Jul 28, 2014 in VPOP3 by brendanus (7 points) Please log in or register to add a comment. Socket Error 10054 Connection Reset By Peer WinSock description: Same as Berkeley TCP/IP scenario: In TCP terms (datastream sockets), it means an attempt to connect (by sending a TCP SYN packet) caused the destination host to respond to

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Winsock Error 10053 Try reconnecting at a later time.WSAECONNABORTED (10053) Software caused connection abort A connection abort was caused internal to your host machine. Please use our forums instead of this site. http://answers.pscs.co.uk/324/socket-error-10051-connection-error-not-in-wiki However, because a BSD socket is equivalent to a file handle, some Windows Sockets platforms provide some file handle and socket equivalency.

WinSock description: Same as Berkeley. Socket Error Codes Linux Some WinSock implementation use these errors inappropriately, but they have a particular meaning. Additional functions: Berkeley sockets connect returns this error on subsequent calls, after an initial call on a non-blocking socket. The WinSock API does not provide access to the Network File System application protocol, so this error is irrelevant to WinSock.

Winsock Error 10053

The ICMP message means that a 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). For protocol and services resolution, the name or number was not found in the respective database. Socket Error 10054 Detailed descriptions: the specific meanings that some WinSock functions have for some errors. What Is A Socket Error Ignore it.

It may also indicate you are not closing the applications properly. Check This Out Hot to delete old folders showing in outlook but not in webmail smtp server connection log Delivery Send Error Message What to do about Error 10038? A server has attempted to handle an NFS request by generating a request to another NFS server, which is not allowed. Since Windows Sockets is practically a clone of Berkeley Sockets, and the rule of thumb is "when in doubt, defer to Berkeley", we can adopt the Berkeley Software Distribution error text Socket Error 10049

WSAVERNOTSUPPORTED (10092) WINSOCK DLL Version out of range The current Winsock implementation does not support the Windows Sockets specification version requested by the application. If so, then the application might have had a problem resolving the name (see suggestions at WSATRY_AGAIN for more information). Register username password confirm email Make changes/additions/deletions to the article below, and one of our editors will publish your suggestions if warranted. Source What Are the Common Causes of Socket Error 10060?

WinSock functions: connect(), FD_CONNECT Additional functions: Any function that does I/O on the network could generate this error, and the WSAAsyncSelect() events FD_OOB, FD_READ, FD_WRITE. Socket Error 10061 Connection Refused In this case, the 2nd application will fail with WSAEADDRINUSE. send() and sendto(): you cannot send a datagram as large as you've requested.

A couple functions that the v1.1 specification missed are WSASetLastError() and WSAUnhookBlockingHook().

For full access please Register. 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).WSAENOTEMPTY Developers should consider handling the referenced errors similarly. Winsock Error 10061 It also occurs with functions that take a socket handle and a sockaddr structure as input parameters.

WinSock description: No equivalent in WinSock. Berkeley description: A connect or send request failed because the connected party did not properly respond after a period of time. (The timeout period is dependent on the communication protocol.) WinSock The WinSock implementation was unable to allocate additional memory to accommodate the function request. have a peek here EDIT: The original VS2010 proj.

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 The constructor: CSockAddr(const char *pchIP, const USHORT ushPort = 0) // dotted IP addr string { sin_family = AF_INET; sin_port = htons(ushPort); sin_addr.s_addr = inet_addr(pchIP); } Constructor call used by me: WinSock description: Same as Berkeley. This error also could occur if an application opens and closes sockets often, but doesn't properly close the sockets (so it leaves them open, as 'orphans').

For example, you shouldn't necessarily expect to be able to use NS addresses with ARPA Internet protocols. 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 To recover the orphaned sockets, you can try closing the application and restarting it to recover the open sockets; you may have to end all WinSock applications (to force an unload It would also timeout if a (FIN)ish TCP packet is not ACK'd (and even if the FIN is ACK'd, it will eventually timeout if a FIN is not returned).

WSAEADDRINUSE (10048) Address already in use Only one usage of each address is normally permitted. If it persists, exit Windows or reboot your machine to remedy the problem. When the computer doesn’t have any router configured, this returns a socket error 10065. Berkeley description: A request to send data was disallowed because the socket had already been shut down with a previous shutdown() call.

The error can occur when the local network system aborts a connection. 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. 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?