Hi,all
It’s very slowly to copy files from another computer in our office LAN,my OS is Windows 2000 Pro,
But It’s very quckly in My Windows XP system , why??? Can everyone help me?
Thanks in advance.
Crasher Guo
It’s not exactly on-topic for this list, but since I had a similar
problem recently, I’ll bite…
I had one PC on my network have network performance problems recently
such that it was only communicating at a rate of about 5% of normal
performance. It wasn’t totally dead, but it was definatly a dog. After
much investigation, it turned out that the network card in that PC had
flaked out. It still worked enough that things would work very slowly
as packets were retried and retried until they successfully got through,
but it probably had a 90+% failure rate on transmitting or receiving
packets.
Once I was able to diagnose the source of the problem, I found that the
bad card was generating garbage ethernet traffic, killing all
performance between that PC and the network switch. Furthermore, it
appeared that it was generating garbage traffic in conjunction with disk
activity on that PC’s hard drive. Whenever the disk drive activity
light would flicker, trash got dumped out on the network. And since
there is usually disk activity when you are copying a file to/from the
network, this just made things worse. Very strange behavior. I’m not
sure what the heck was causing the problem, but replacing the network
card with an identical replacement took care of it.
In my case, it had nothing to do with the version of Windows.
Good luck,
- Jay
Jay Talbott
Principal Consulting Engineer
SysPro Consulting, LLC
3519 E. South Fork Drive
Suite 201
Phoenix, AZ 85044
(480) 704-8045
xxxxx@sysproconsulting.com
http://www.sysproconsulting.com
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Crasher Guo
Sent: Friday, June 13, 2003 2:25 AM
To: NT Developers Interest List
Subject: [ntdev] It’s very slowly to copy files from another
computer in our office LAN(OS:windows 2000 Pro)Hi,all
It’s very slowly to copy files from another computer in our
office LAN,my OS is Windows 2000 Pro,
But It’s very quckly in My Windows XP system , why??? Can
everyone help me?Thanks in advance.
Crasher Guo
You are currently subscribed to ntdev as:
xxxxx@sysproconsulting.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
I recently diagnosed a very interesting problem with my home network
that caused traffic between my home machines to proceed at only about 1%
max throughput. Eventually, I found a newsgroup post that explained the
problem. If you have multiple home machines connected to a hub along
with a cable modem, and your home machines are NOT using NAT, the router
on the cable company side will usually proxy ARP for your home machines
and force all traffic between your machines to route through it first.
There was no easy solution to this, unfortunately. I had to write a C
program that would run on each machine and manually fixup the ARP and
routing tables to contain the correct information. (If anybody wants the
source they can have it). Eventually I got fed up with this and just
NATted the whole thing. (Yes, I’m waiting for the Comcast NAT Gestapo to
show up at my door any minute…)
- Nick Ryan
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Jay Talbott
Sent: Friday, June 13, 2003 11:28 AM
To: NT Developers Interest List
Subject: [ntdev] RE: It’s very slowly to copy files from
another computer in our office LAN(OS:windows 2000 Pro)It’s not exactly on-topic for this list, but since I had a
similar problem recently, I’ll bite…I had one PC on my network have network performance problems
recently such that it was only communicating at a rate of
about 5% of normal performance. It wasn’t totally dead, but
it was definatly a dog. After much investigation, it turned
out that the network card in that PC had flaked out. It
still worked enough that things would work very slowly as
packets were retried and retried until they successfully got
through, but it probably had a 90+% failure rate on
transmitting or receiving packets.Once I was able to diagnose the source of the problem, I
found that the bad card was generating garbage ethernet
traffic, killing all performance between that PC and the
network switch. Furthermore, it appeared that it was
generating garbage traffic in conjunction with disk activity
on that PC’s hard drive. Whenever the disk drive activity
light would flicker, trash got dumped out on the network.
And since there is usually disk activity when you are copying
a file to/from the network, this just made things worse.
Very strange behavior. I’m not sure what the heck was
causing the problem, but replacing the network card with an
identical replacement took care of it.In my case, it had nothing to do with the version of Windows.
Good luck,
- Jay
Jay Talbott
Principal Consulting Engineer
SysPro Consulting, LLC
3519 E. South Fork Drive
Suite 201
Phoenix, AZ 85044
(480) 704-8045
xxxxx@sysproconsulting.com
http://www.sysproconsulting.com> -----Original Message-----
> From: xxxxx@lists.osr.com
> [mailto:xxxxx@lists.osr.com] On Behalf Of Crasher Guo
> Sent: Friday, June 13, 2003 2:25 AM
> To: NT Developers Interest List
> Subject: [ntdev] It’s very slowly to copy files from
another computer
> in our office LAN(OS:windows 2000 Pro)
>
>
> Hi,all
> It’s very slowly to copy files from another computer in our office
> LAN,my OS is Windows 2000 Pro, But It’s very quckly in My
Windows XP
> system , why??? Can everyone help me?
>
>
> Thanks in advance.
>
> Crasher Guo
>
>
>
>
>
> —
> You are currently subscribed to ntdev as:
> xxxxx@sysproconsulting.com To unsubscribe send a blank
email to
> xxxxx@lists.osr.com
>
You are currently subscribed to ntdev as: xxxxx@nryan.com
To unsubscribe send a blank email to xxxxx@lists.osr.com
The D-Link and LinkSys allow you to set the MAC address of the Cable/DSL
Router to that of your Ethernet card. That should make it harder for
them to determine if you are using multiple computers and NAT. I
wouldn’t want to allow my home traffic to go out on the slow cable
system, since my machine to machine connection is 100Mbps.
----- Original Message -----
From: “Nick Ryan”
To: “NT Developers Interest List”
Sent: Friday, June 13, 2003 3:26 PM
Subject: [ntdev] RE: It’s very slowly to copy files from another
computer in our office LAN(OS:windows 2000 Pro)
> I recently diagnosed a very interesting problem with my home network
> that caused traffic between my home machines to proceed at only about
1%
> max throughput. Eventually, I found a newsgroup post that explained
the
> problem. If you have multiple home machines connected to a hub along
> with a cable modem, and your home machines are NOT using NAT, the
router
> on the cable company side will usually proxy ARP for your home
machines
> and force all traffic between your machines to route through it first.
>
> There was no easy solution to this, unfortunately. I had to write a C
> program that would run on each machine and manually fixup the ARP and
> routing tables to contain the correct information. (If anybody wants
the
> source they can have it). Eventually I got fed up with this and just
> NATted the whole thing. (Yes, I’m waiting for the Comcast NAT Gestapo
to
> show up at my door any minute…)
>
> - Nick Ryan
>
> > -----Original Message-----
> > From: xxxxx@lists.osr.com
> > [mailto:xxxxx@lists.osr.com] On Behalf Of Jay Talbott
> > Sent: Friday, June 13, 2003 11:28 AM
> > To: NT Developers Interest List
> > Subject: [ntdev] RE: It’s very slowly to copy files from
> > another computer in our office LAN(OS:windows 2000 Pro)
> >
> >
> > It’s not exactly on-topic for this list, but since I had a
> > similar problem recently, I’ll bite…
> >
> > I had one PC on my network have network performance problems
> > recently such that it was only communicating at a rate of
> > about 5% of normal performance. It wasn’t totally dead, but
> > it was definatly a dog. After much investigation, it turned
> > out that the network card in that PC had flaked out. It
> > still worked enough that things would work very slowly as
> > packets were retried and retried until they successfully got
> > through, but it probably had a 90+% failure rate on
> > transmitting or receiving packets.
> >
> > Once I was able to diagnose the source of the problem, I
> > found that the bad card was generating garbage ethernet
> > traffic, killing all performance between that PC and the
> > network switch. Furthermore, it appeared that it was
> > generating garbage traffic in conjunction with disk activity
> > on that PC’s hard drive. Whenever the disk drive activity
> > light would flicker, trash got dumped out on the network.
> > And since there is usually disk activity when you are copying
> > a file to/from the network, this just made things worse.
> > Very strange behavior. I’m not sure what the heck was
> > causing the problem, but replacing the network card with an
> > identical replacement took care of it.
> >
> > In my case, it had nothing to do with the version of Windows.
> >
> > Good luck,
> >
> > - Jay
> >
> > Jay Talbott
> > Principal Consulting Engineer
> > SysPro Consulting, LLC
> > 3519 E. South Fork Drive
> > Suite 201
> > Phoenix, AZ 85044
> > (480) 704-8045
> > xxxxx@sysproconsulting.com
> > http://www.sysproconsulting.com
> >
> >
> > > -----Original Message-----
> > > From: xxxxx@lists.osr.com
> > > [mailto:xxxxx@lists.osr.com] On Behalf Of Crasher Guo
> > > Sent: Friday, June 13, 2003 2:25 AM
> > > To: NT Developers Interest List
> > > Subject: [ntdev] It’s very slowly to copy files from
> > another computer
> > > in our office LAN(OS:windows 2000 Pro)
> > >
> > >
> > > Hi,all
> > > It’s very slowly to copy files from another computer in our office
> > > LAN,my OS is Windows 2000 Pro, But It’s very quckly in My
> > Windows XP
> > > system , why??? Can everyone help me?
> > >
> > >
> > > Thanks in advance.
> > >
> > > Crasher Guo
> > >
> > >
> > >
> > >
> > >
> > > —
> > > You are currently subscribed to ntdev as:
> > > xxxxx@sysproconsulting.com To unsubscribe send a blank
> > email to
> > > xxxxx@lists.osr.com
> > >
> >
> >
> >
> > —
> > You are currently subscribed to ntdev as: xxxxx@nryan.com
> > To unsubscribe send a blank email to xxxxx@lists.osr.com
> >
>
>
>
> —
> You are currently subscribed to ntdev as: xxxxx@yoshimuni.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>