windows 7 - A socket operation was attempted to an unreachable host error

07
2014-07
  • João Antunes

    I'm developing a program in C# that uses a UDP multicast system. My Multicast group it's using 224.0.0.1 address to communicate.

    In all Windows 8 machines it is working fine. However, in a Win 7 64x machine the following error occurs:

    A socket operation was attempted to an unreachable host.

    Any suggestions what i have to do on the Win7 64x machine, to work?

    I have already tried to check route table (on cmd prompt: route print). I saw that only 244.0.0 is being mapped and it works with 244.0.0.0. Thing is I want to use 244.0.0.1, since I only want to use the multicast in a local network.

    When I try to make a route add command like this: 

    route ADD 224.0.0.1 MASK 192.168.2.1 192.168.2.26

    (or anything similar) it says:

    The route addition failed: The parameter is incorrect.
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  • Craig

    The permissions in mysql for socket connections are separate from the network connections.

    This will allow network connections:

    grant all privileges on dbname.* to USERNAME@% identified by 'password'