General Network Error

  • Hi All,

    Frequently Sql-server is throwing this error to each network clients:

    "General Network Error. Check your network documentation. ConnectionRead (recv())." Although the server is online in network, even user can access MAP drive on it. But When I restart SQL Server service it works fine. Any solution?

    Regards, GB

  • From my experience this is typically caused by network communication problems between the clients and the databaseserver. Try to see if the server has a lot of bad packets and try to ping the dbserver f.ex.50 times to see if there are any loss of ICMP-packets. You may have something between causing the problems (switches, hubs, routers etc.), but I would normally try to start as close to the dbserver as possible and then widen the search. It could boil down to a simple matter of a bad NIC-driver, bad port on the switch, bad network cable (!) or something like this.

    It could also have to do with your network configuration and maybe you should take a look into Server Network utility to verify the current settings (protocols, port etc.). AND You should of cource verify that You don't have any firewalls blocking the necessary SQL-server return traffic - it seems like Your clients have problems recieving reply packages from SQL Server.

     

    \hpl

  • I've also this message when a part of the database (like an index) became corrupt.

  • I also get this message when trying to connect to my server via Query Analyzer.  I drop about every 5 minutes.  When you stated 'try to ping the dbserver f.ex.', what is 'f.ex'?


    Kindest Regards,

    CRC

  • Hi All,

    I can understand this problem may belongs to some network devices. But why every thing goes fine when I restart the SQL Server Service only (NOT THE SERVER ITSELF)? Furthermore, this error also appears when connecting locally, there is no problem with server resources. Any help please?

    Regards, --GB

  • try to increase the network package size (from Query analyzer : tools options connections). in our situation it helped...


    ?

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