Hi All, I'm working on troubleshooting a LabVIEW client-server problem. Connections between the clients and the server occasionally get dropped, for no seeming reason. The software is installed at several different sites. Some sites work well, with few drops. At a couple of sites, however, the rate of drops appears to follow an almost exponential curve. Users start out experiencing drops every few days, then hours, then it rapidly deteriorates to the point where, as soon as a client app logs into the server app, the connection dies. We've started to refer to these as "drop storms".
I recall another post I did, around mid 2003 (May-Sept timeframe), and someone replied, either by the list or directly, but I can't seem to find the email. The person replying spoke of troubleshooting a TCP/IP based LabVIEW setup that also experienced drops, and after extensive network sniffing, the trouble was traced to some hardware switch or router that was several physical connections away. This component was doing something that rippled over to the LabVIEW server machine and resulted in the disconnections. In addition, sometimes the server, during a "drop storm", seems to freeze up or slow way down. We have had to restart/reboot the server and during the time the server was down some of the clients didn't seem to see a TCP/IP disconnection. ie, the LabVIEW primitives don't error out with an error. So I think we are probably looking at two different problems. One that causes the "storms", and another that results in LabVIEW not recognizing a disconnection. If the originator of the reply (or anyone else who has had similar experiences) could get back to me I'd greatly appreciate it. Please CC me directly as well as to the list, as I get the digest version of the list). Thanks in advance, Mike *********************************** Michael C. Ashe Imaginatics Control & Test Systems 11 Quinley Way Waterford, CT 06385 Phone: 860-444-2141 Cell: 860-961-0876 email: [EMAIL PROTECTED] ***********************************
