I am having an issue when copying a large (~150MB) file over the network from a Windows 7 pc to a Windows XP pro machine. The transfer stalls out about 10% of the way through and eventually errors out. I can copy files from the XP machine to the Windows 7 machine with no problems and can also copy files to and from the Windows 7 PC from the XP machine. There is another Win7 pc on the network that has the same issue. Another XP machine on the network transfers just fine. I've tried turning off auto tuning [netsh int tcp set global autotuninglevel= disabled] and have also tried turning off Remote Differential Compression with no luck. Suggestions on how to proceed from here would be appreciated.
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copying large files from Windows 7 pc to XP Pro pc
- Thread starter wubba68
- Start date
JockMullin
MIS
What is the error you are getting?
What are you using to do the copy, explorer?
Is the destination XP machine short of resources, disk space or needing defrag?
I would try using MS's robocopy program, which has excellent error recovery features & timeout settings and often will work in dodgy network situations and over vpn connections when other programs fail.
Jock
What are you using to do the copy, explorer?
Is the destination XP machine short of resources, disk space or needing defrag?
I would try using MS's robocopy program, which has excellent error recovery features & timeout settings and often will work in dodgy network situations and over vpn connections when other programs fail.
Jock
see if some of the stuff I suggested here would also apply to you, e.g. disable IPv6 or the NTLMv2 settings...
thread1726-1580680
Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"
thread1726-1580680
Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"
- Thread starter
- #5
Thanks everyone for the responses. I was able to check all of your suggestions this morning.
linney- The copy still fails in safe mode.
JockMullin- Yes, I'm using Explorer to do the copy. The XP machine has plenty of resources. Using another program to copy isn't really an option.
BigBadBen- tried everything on your list with no change.
So far I've tried the following:
*Turning off IPV6, Turning off large send offload (IPV4) (IPV4 v2) and (IPV6 V2)
*Changed Network Security: Lan Manager Authentication Level to 'Send LM & NTLM - use NTLMv2 session if negotiated'
*Changed Network Security: Minimum session security for NTLM SSp Based Clients to 'unchecked (no minimum)'
*Turned off Link Layer Topology Discover Mapper I/O Driver and Link Layer Topology Discover Responder in the LAN Properties.
The problem isn't affecting the users' ability to access the files over the network so far. They can open an Access database file (this is the one that is ~150MB) and a Quickbooks data file that is even larger.
linney- The copy still fails in safe mode.
JockMullin- Yes, I'm using Explorer to do the copy. The XP machine has plenty of resources. Using another program to copy isn't really an option.
BigBadBen- tried everything on your list with no change.
So far I've tried the following:
*Turning off IPV6, Turning off large send offload (IPV4) (IPV4 v2) and (IPV6 V2)
*Changed Network Security: Lan Manager Authentication Level to 'Send LM & NTLM - use NTLMv2 session if negotiated'
*Changed Network Security: Minimum session security for NTLM SSp Based Clients to 'unchecked (no minimum)'
*Turned off Link Layer Topology Discover Mapper I/O Driver and Link Layer Topology Discover Responder in the LAN Properties.
The problem isn't affecting the users' ability to access the files over the network so far. They can open an Access database file (this is the one that is ~150MB) and a Quickbooks data file that is even larger.
JockMullin
MIS
Well, that file isn't really all that large. I routinely copy much larger files than that between Win 7 and XP systems without problem.
The fact it is limited to one XP box is probably significant. I would start thinking about changing the port on the switch, swapping the network cable and trying another nic.
Also, I have seen some nics that work more reliably if the link speed is set to the actual value rather than auto detect.
I am still wondering what the error is you are getting when the copy fails. Is there anything in the logs at that time?
Jock
The fact it is limited to one XP box is probably significant. I would start thinking about changing the port on the switch, swapping the network cable and trying another nic.
Also, I have seen some nics that work more reliably if the link speed is set to the actual value rather than auto detect.
I am still wondering what the error is you are getting when the copy fails. Is there anything in the logs at that time?
Jock
- Thread starter
- #8
JockMullin - I meant to put the error message up earlier. I get 'There is a problem accessing M:\ Make sure you are connected to the network and try again.' I haven't checked the system logs. I will try to get to that. I would agree about there being a hardware issue but I don't get this error when I copy a file from another XP machine to this machine. Also I don't get the error when I copy files from the XP machine to any of the others; Only when copy a file TO the XP machine FROM the Windows 7 machines.
for the XP machines take a gander at:
How Autodisconnect Works in Windows NT and Windows 2000
also this may be of interest:
Mapped Drive Connection to Network Share May Be Lost
Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"
How Autodisconnect Works in Windows NT and Windows 2000
also this may be of interest:
Mapped Drive Connection to Network Share May Be Lost
Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"
dilettante
MIS
One more vote for avoiding auto detect. Of course I've also seen similar symptoms trying to force 100baseT over silver satin cable.
These sound a bit similar to your problem and might be worth a look at.
Windows 7 and Time Capsule
Windows 7 and Time Capsule
- Thread starter
- #12
OK, I was finally able to check out this issue again today. I found no errors in the Windows 7 machine's event log. I also tried setting the nic's speed settings to 100Mbps Full Duplex. I'll try swapping out the cables next and see if that helps. Thanks for your suggestions!
- Thread starter
- #14
SimonDavies
MIS
Out of interest have you tried running a persistent ping whilst copying, that way you should see whether it's actually an issue with the share or the machine.
ping -t x.x.x.x will give you a constant ping until you cancel it.
Simon
The real world is not about exam scores, it's about ability.
ping -t x.x.x.x will give you a constant ping until you cancel it.
Simon
The real world is not about exam scores, it's about ability.
While this doesn't help as to the why, there is a program that may help. JRSplit is a program that will split large files into chunks. You can transfer each chunk individually, then reassemble them later. I use this when I send large files to email addresses that have a small limit on their in boxes.
On a hardware side, have you checked the cables? The faster the network connection, the more compliant to the standards a cable must be. You have to realize that the cables are more than just wires running from place to place. They are twisted and wrapped a certain way for a reason.
The longer a cable, the more impedance there is. That's physics. Cat 5-x and cat 6 cables are designed to minimize that resistance and to prevent interference from electromagnetic radiation that comes from other devices.
Where the wires run can also affect them. I've seen cabling that ran fine under cat 3 specs but had to be moved before they would pass cat 5 spec. The reason, they were laid right next to power lines.
James P. Cottingham
I'm number 1,229!
I'm number 1,229!
On a hardware side, have you checked the cables? The faster the network connection, the more compliant to the standards a cable must be. You have to realize that the cables are more than just wires running from place to place. They are twisted and wrapped a certain way for a reason.
The longer a cable, the more impedance there is. That's physics. Cat 5-x and cat 6 cables are designed to minimize that resistance and to prevent interference from electromagnetic radiation that comes from other devices.
Where the wires run can also affect them. I've seen cabling that ran fine under cat 3 specs but had to be moved before they would pass cat 5 spec. The reason, they were laid right next to power lines.
James P. Cottingham
I'm number 1,229!
I'm number 1,229!
JockMullin
MIS
As a long-suffering homeowner I can report that squirrels and other small rodents will gnaw away at anything made of rubber or soft plastic whether or not there is any current or wiring involved.
Breaching the insulation allows moisture to enter which causes signal attenuation even though not a short.
In the area of cable interference, I find running unshielded cables over fluorescent light fixtures is a frequent source of problems.
Jock
Breaching the insulation allows moisture to enter which causes signal attenuation even though not a short.
In the area of cable interference, I find running unshielded cables over fluorescent light fixtures is a frequent source of problems.
Jock
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