ADSL Connection speed issue

Discussion in 'Computer Support' started by Pete, Jul 28, 2006.

  1. Pete

    Pete Guest

    Hi

    I have 2 PCs (WIn XP Home, WIn XP Prof) connected via Ethernet cable, at
    100MB/s, to two ports of a wireless router into an ADSL connection into
    PlusNet. Wireless side of the router not being used in this instance.

    PC1 (XP Home) works fine with a solid connection consistently acheiving
    around 6MB/s..
    PC2 will not achieve more than about 300KB/s and varies run to run on a
    speed test site anything down to 50KB/s. ie it's inconsistent as well as
    just plain slow. Sometimes it appears to not connect at all. It is otherwise
    running at normal speed when doing other non Internet related activities.
    Speed across the LAN to the other PC is fine - big test file (200+MB)
    transfer ran at 30-60% of network utilitisation on a 100MB/s link via the
    same router.

    Both PCs set up the same as far as the LAN config is concerned, and both
    running Windows firewall. The router supplies the IP via DHCP. ipconfig
    command output isidentical apart from local IP addresses as per DHCP
    allocation.

    The slow PC used to be OK (never measured it but it was just OK). We beleive
    the problem started after deleting a user configured to work with a domain,
    the PC having come out of an office environment and into a home environment.
    When in the home environment the user just ignored the domain stuff at the
    login screen. Perhaps foolishly we chose to clean up the machine, after
    which these wierd speed and connection problems started.

    The diagnostics on the router all show no problerms and everything as per
    expectations. IP allocation as normal via DHCP. ADSL Line state good.

    Both PCs have been set to work within a MS Workgroup and file/printer
    sharing.

    Machine has no detectable viruses - scanned with TrendMicro Housecall - ages
    to load - complained about slow connection!

    So any ideas welcome please, apart from a complete rebuild. The most odd
    thing is the inconsistency of the resulting speeds we are seeing.

    Cheers

    Pete
    Pete, Jul 28, 2006
    #1
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  2. Pete

    Whiskers Guest

    On 2006-07-28, Pete <> wrote:

    snip

    > The slow PC used to be OK (never measured it but it was just OK). We beleive
    > the problem started after deleting a user configured to work with a domain,
    > the PC having come out of an office environment and into a home environment.
    > When in the home environment the user just ignored the domain stuff at the
    > login screen. Perhaps foolishly we chose to clean up the machine, after
    > which these wierd speed and connection problems started.


    snip

    Looks like a clue, to me ;)) 'It was OK, we changed something, now it
    isn't OK'. The trick, of course, is to work backwards through what you
    changed until you see what it was that did the damage. If 'system
    restore' dosn't do the trick, the oft-derided 'format and reinstall' may be
    the quickest way to get things working normally without any hang-overs left
    from the way the system was set up for the previous network.

    I don't know the details of how WinXP handles networking, so I can't give
    step-by-step instructions, but in principle you could remove all the
    network settings on the troublesome machine and start again.

    --
    -- ^^^^^^^^^^
    -- Whiskers
    -- ~~~~~~~~~~
    Whiskers, Jul 28, 2006
    #2
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  3. "Pete" <> wrote in message
    news:44c960a6$0$29544$...
    > Hi
    >
    > I have 2 PCs (WIn XP Home, WIn XP Prof) connected via Ethernet cable, at
    > 100MB/s, to two ports of a wireless router into an ADSL connection into
    > PlusNet. Wireless side of the router not being used in this instance.
    >
    > PC1 (XP Home) works fine with a solid connection consistently acheiving
    > around 6MB/s..
    > PC2 will not achieve more than about 300KB/s and varies run to run on a
    > speed test site anything down to 50KB/s. ie it's inconsistent as well as
    > just plain slow. Sometimes it appears to not connect at all. It is
    > otherwise running at normal speed when doing other non Internet related
    > activities. Speed across the LAN to the other PC is fine - big test file
    > (200+MB) transfer ran at 30-60% of network utilitisation on a 100MB/s link
    > via the same router.
    >
    > Both PCs set up the same as far as the LAN config is concerned, and both
    > running Windows firewall. The router supplies the IP via DHCP. ipconfig
    > command output isidentical apart from local IP addresses as per DHCP
    > allocation.
    >
    > The slow PC used to be OK (never measured it but it was just OK). We
    > beleive
    > the problem started after deleting a user configured to work with a
    > domain,
    > the PC having come out of an office environment and into a home
    > environment.
    > When in the home environment the user just ignored the domain stuff at the
    > login screen. Perhaps foolishly we chose to clean up the machine, after
    > which these wierd speed and connection problems started.
    >
    > The diagnostics on the router all show no problerms and everything as per
    > expectations. IP allocation as normal via DHCP. ADSL Line state good.
    >
    > Both PCs have been set to work within a MS Workgroup and file/printer
    > sharing.
    >
    > Machine has no detectable viruses - scanned with TrendMicro Housecall -
    > ages to load - complained about slow connection!
    >
    > So any ideas welcome please, apart from a complete rebuild. The most odd
    > thing is the inconsistency of the resulting speeds we are seeing.


    If this is only happeing with WAN connections maybe you shoud compare the
    settings in Network Connections>Advanced, There might be a problem with the
    defaukt gateway or DNS server settings.

    ss.
    Synapse Syndrome, Jul 28, 2006
    #3
  4. Pete

    Pete Guest

    Thanks - will try deleting and reinstalling the LAN connection.

    WAN isn't significant here - both PCs connect via 100MB/s wired LAN thru the
    router ports.
    I can also see no IP specific security settings on the router that may
    account for different behaviour between PCs.
    Both PCs also show correctly in the router's DHCP table.

    ipconfig/all on both PCs show the same details when the ADSL conection is up
    (default gateway/dns etc.). Only different IPs as expected - same network.

    Only thing that is odd is dns settings list the router rather than the
    actual PlusNet dns IPs. Plainly a dns is being reached and without
    significant delay too. Problem comes back to the transfer speed being
    severely crippled.
    LAN properties both set to aquire IP and DNS automatically

    Complete rebuild only last resort - too much old software on PC that may be
    difficult to reproduce outside the office environment but is still being
    used.

    OR is it possible to reinstall XP (no reformat) without zapping all
    installed apps?

    Pete
    Pete, Jul 29, 2006
    #4
  5. Pete

    Jimmy Dean Guest

    On Fri, 28 Jul 2006 01:51:36 +0100, "Pete" <> wrote:

    >Hi
    >
    >I have 2 PCs (WIn XP Home, WIn XP Prof) connected via Ethernet cable, at
    >100MB/s, to two ports of a wireless router into an ADSL connection into
    >PlusNet. Wireless side of the router not being used in this instance.
    >
    >PC1 (XP Home) works fine with a solid connection consistently acheiving
    >around 6MB/s..
    >PC2 will not achieve more than about 300KB/s and varies run to run on a
    >speed test site anything down to 50KB/s. ie it's inconsistent as well as
    >just plain slow. Sometimes it appears to not connect at all. It is otherwise
    >running at normal speed when doing other non Internet related activities.
    >Speed across the LAN to the other PC is fine - big test file (200+MB)
    >transfer ran at 30-60% of network utilitisation on a 100MB/s link via the
    >same router.
    >
    >Both PCs set up the same as far as the LAN config is concerned, and both
    >running Windows firewall. The router supplies the IP via DHCP. ipconfig
    >command output isidentical apart from local IP addresses as per DHCP
    >allocation.
    >
    >The slow PC used to be OK (never measured it but it was just OK). We beleive
    >the problem started after deleting a user configured to work with a domain,
    >the PC having come out of an office environment and into a home environment.
    >When in the home environment the user just ignored the domain stuff at the
    >login screen. Perhaps foolishly we chose to clean up the machine, after
    >which these wierd speed and connection problems started.
    >
    >The diagnostics on the router all show no problerms and everything as per
    >expectations. IP allocation as normal via DHCP. ADSL Line state good.
    >
    >Both PCs have been set to work within a MS Workgroup and file/printer
    >sharing.
    >
    >Machine has no detectable viruses - scanned with TrendMicro Housecall - ages
    >to load - complained about slow connection!
    >
    >So any ideas welcome please, apart from a complete rebuild. The most odd
    >thing is the inconsistency of the resulting speeds we are seeing.
    >
    >Cheers
    >
    >Pete


    LSP-Fix - a free program to repair damaged Winsock 2 stacks
    This program fixes loss of Internet access caused by buggy or
    improperly removed software.
    www.cexx.org/lspfix.htm - 8k - 26 Jul 2006

    Worth a try, though normally LSP fixes a situation where internet
    access has been completely lost.

    jd
    Jimmy Dean, Jul 29, 2006
    #5
  6. Pete

    FML Guest

    Pete wrote:
    > Hi
    >
    > I have 2 PCs (WIn XP Home, WIn XP Prof) connected via Ethernet cable, at
    > 100MB/s, to two ports of a wireless router into an ADSL connection into
    > PlusNet. Wireless side of the router not being used in this instance.
    >
    > PC1 (XP Home) works fine with a solid connection consistently acheiving
    > around 6MB/s..
    > PC2 will not achieve more than about 300KB/s and varies run to run on a
    > speed test site anything down to 50KB/s. ie it's inconsistent as well as
    > just plain slow. Sometimes it appears to not connect at all. It is otherwise
    > running at normal speed when doing other non Internet related activities.
    > Speed across the LAN to the other PC is fine - big test file (200+MB)
    > transfer ran at 30-60% of network utilitisation on a 100MB/s link via the
    > same router.
    >
    > Both PCs set up the same as far as the LAN config is concerned, and both
    > running Windows firewall. The router supplies the IP via DHCP. ipconfig
    > command output isidentical apart from local IP addresses as per DHCP
    > allocation.
    >
    > The slow PC used to be OK (never measured it but it was just OK). We beleive
    > the problem started after deleting a user configured to work with a domain,
    > the PC having come out of an office environment and into a home environment.
    > When in the home environment the user just ignored the domain stuff at the
    > login screen. Perhaps foolishly we chose to clean up the machine, after
    > which these wierd speed and connection problems started.
    >
    > The diagnostics on the router all show no problerms and everything as per
    > expectations. IP allocation as normal via DHCP. ADSL Line state good.
    >
    > Both PCs have been set to work within a MS Workgroup and file/printer
    > sharing.
    >
    > Machine has no detectable viruses - scanned with TrendMicro Housecall - ages
    > to load - complained about slow connection!
    >
    > So any ideas welcome please, apart from a complete rebuild. The most odd
    > thing is the inconsistency of the resulting speeds we are seeing.
    >
    > Cheers
    >
    > Pete
    >
    >


    When you right-click on the Network Connection and select Properties,
    under the General tab, are the Clients, Services and Protocols the same
    for both machines?
    FML, Jul 29, 2006
    #6
  7. Pete wrote:

    > Thanks - will try deleting and reinstalling the LAN connection.
    >
    > WAN isn't significant here - both PCs connect via 100MB/s wired LAN thru
    > the router ports.
    > I can also see no IP specific security settings on the router that may
    > account for different behaviour between PCs.
    > Both PCs also show correctly in the router's DHCP table.
    >
    > ipconfig/all on both PCs show the same details when the ADSL conection is
    > up (default gateway/dns etc.). Only different IPs as expected - same
    > network.
    >

    A good hint from FML is the "protocols" setting. You should take a look for
    extra/unnecessary protocols and clients.
    Deleting the NIC (which also removes protocol bindings) and letting it
    redetect at next boot might help as well.
    You should take a look at %windir%\system32\drivers\etc\hosts and lmhosts as
    well.
    --
    vista policy violation: Microsoft optical mouse detected penguin patterns
    on mousepad. Partition scan in progress to remove offending
    incompatible products. Reactivate MS software.
    Linux 2.6.16-mm1,Xorg7.0 [LinuxCounter#295241,ICQ#4918962]
    Walter Mautner, Jul 29, 2006
    #7
  8. Pete

    Pete Guest

    Many thanks for those suggestions - time to go play some more...
    PCs are at a friend's place so things are more drawn out than if it
    was my own kit.

    It really feels like it's a hangover from the office environment. Zap the
    NIC and let XP rebuild sounds worth a try unless there's obvious differences
    in the setups/protocols etc as you suggest. At least I've a reference
    machine that does work.

    Cheers

    Pete
    Pete, Jul 30, 2006
    #8
  9. Pete wrote:
    > Many thanks for those suggestions - time to go play some more...
    > PCs are at a friend's place so things are more drawn out than if it
    > was my own kit.
    >
    > It really feels like it's a hangover from the office environment. Zap
    > the NIC and let XP rebuild sounds worth a try unless there's obvious
    > differences in the setups/protocols etc as you suggest. At least I've
    > a reference machine that does work.
    >
    > Cheers
    >
    > Pete


    Tomato juice usually helps my hangovers. V8 as a matter of fact. :) I hope
    you were at an office party and not drinking on the job. <g>

    Hope you feel better. <g>
    Randall Smith, Jul 30, 2006
    #9
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