Mulitple files copying slowly over network

Discussion in 'Windows Networking' started by John Pugh, Sep 7, 2004.

  1. John Pugh

    John Pugh Guest

    Hi there,

    I hope someone can help.

    We have a problem with windows networking, we have a 2003 SBS Server and
    about 10 clients (all running XP Pro) some (including the server) running on
    a gigabit network provided by a Netgear GS108 switch and the rest connected
    via a 100mb FS517TS Netgear switch through a gigabit uplink port.

    The problem is this - when we connect via a certian client (client01) on the
    gigabit network and copy some files to the server it sometimes runs about 20
    times slower than normal, this has only happened on other clients a couple
    of times, once when trying to replicate the problem. Interesting when the
    problem was happening on this other machine it wasn't on the first one!

    We have tried to copy the same directory using another client and it worked
    fine and yet when we tried it again with the first one it still didn't work.
    We tried changing the port in the switch, moving it over to the 100mb
    switch, logging in as someone else, changing the network cable and now we
    have replaced the entire machine and it stills happens! The only thing that
    remains the same is the SBS server, but it works fine for everybody else.

    When the 'slow down' switched to another machine (client02) we had just
    rebooted the switch and client02 and when it came back up it wouldn't get a
    ip address from the server (via dhcp) and the only way it did get one was by
    rebooting again and when it came back up it had gone into go slow mode it
    also seemed to affect its network browsing speed whereas that didn't happen
    on client01, however the files copied very slowly and at the same rate as
    when it was running slow on client01. Client01 however was super quick again
    for a while, this changed later when they switched places in the speed
    stakes for no particular reason that we could see.

    Client01 and client02 both have gigabit cards in them (Abit IC7-G's builtin
    card the 3com 3C940 and Netgear GA311) and when they were running slow
    changing the port in the switch, the actual switch or the cable made any
    difference. It has only happened on client02 once but it is happening pretty
    much consistently on client01 even when we changed the entire computer! It
    has also been reported to happen on another computer in the network which is
    connected to the 100mb switch.

    This has been driving us crazy, can anyone shed any light on the problem or
    even suggest something we can try?

    Many Thanks

    John
     
    John Pugh, Sep 7, 2004
    #1
    1. Advertisements

  2. Hi John -

    A couple ideas for you:

    Smallbizserver.Net > SBS 2003 > Server issues > Slow file copy to the SBS
    2003 server:
    http://www.smallbizserver.net/Default.aspx?tabid=98


    Also, make sure that you have the most recent drivers for all nics, and
    experiment with setting nics to set speeds (e.g. 100 Full Duplex) AND
    setting everything to Auto-Sense. I have some sites that need to be hard
    set, and others that need to auto-sense to get the best performance. I've
    found that Dell machines work best configured to Auto-Sense

    --

    Chad A. Gross - SBS MVP
    SBS ROCKS!

    www.msmvps.com/cgross
    www.gosbs.org
     
    Chad A. Gross [SBS MVP], Sep 7, 2004
    #2
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.