Hardware/networking guru's
#1
Hardware/networking guru's
Guys
My laptop is an Asus N73S
Its got an Atheros AR8151 gigabit network controller.
Now it used to be ok, but at some point in time it developed network issues.
The driver seems to be the most up to date I can find - version 2.0.12.13
One thing I simply cannot do in a timely manner any more is copy largish files from my machine to a server in our domain.
For example a 300Mb file states that it'll be approx 16 hours to copy
On the other hand, that same 300Mb file will copy TO my laptop from that same server in seconds.
My laptop is an Asus N73S
Its got an Atheros AR8151 gigabit network controller.
Now it used to be ok, but at some point in time it developed network issues.
The driver seems to be the most up to date I can find - version 2.0.12.13
One thing I simply cannot do in a timely manner any more is copy largish files from my machine to a server in our domain.
For example a 300Mb file states that it'll be approx 16 hours to copy
On the other hand, that same 300Mb file will copy TO my laptop from that same server in seconds.
#3
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What is the connection speed? When I have this issue it has usually been dodgy cable connecting at 10 rather than 1000Mbps. Sorry, missed the fast file copy to your laptop.
Last edited by john banks; 08 May 2012 at 04:24 PM.
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#10
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Is it plugged into a switch? Like mentioned earlier it could be that the port is set to auto negotiate and has negotiated at the wrong speed/duplex leading to high collision rates.
If its a managed switch sign onto it and see what speed it has negotiated at and check the error logs for high collision rates.
If its a managed switch sign onto it and see what speed it has negotiated at and check the error logs for high collision rates.
#16
1) Try setting the speed and duplex on the nic by hand in the driver settings through device manager and see if it makes any difference. Start low and build up, see if it helps.
2) Nic might be fried and not working at 1Gbps any more. I've had this on an old PC, luckily the mobo had dual nics, so I popped it in the other one and it worked fine.
3) Could also be a cable problem, have you ruled that out with another machine on the same rj45 or by plugging it directly into the switch with a cable you know is working?
Try those and let me know how you get on.
J
2) Nic might be fried and not working at 1Gbps any more. I've had this on an old PC, luckily the mobo had dual nics, so I popped it in the other one and it worked fine.
3) Could also be a cable problem, have you ruled that out with another machine on the same rj45 or by plugging it directly into the switch with a cable you know is working?
Try those and let me know how you get on.
J
#18
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iTrader: (2)
Registry in 64 bit windows is a funny old thing - you need to locate a folder called syswow64, right click the regedit application and run it as admin.
worth checking the MTU (maximum transmission unit) size for the interface;
From an elevated command prompt - type
netsh interface ipv4 show subinterfaces
The MTU size appears in the first column if this is set to 1500 or above try the following (assuming your newtork connection is called Local Area Connection)
netsh interface ipv4 set subinterface "Local Area Connection" mtu=1360 store=persistent
You may be encountering packet fragmentation and increased numbers of retrys. Although 300Mb taking 16 hours, works out at around 56kbps.
If this improves things, let me know, I can take you through optimising your MTU sizing.
Is the server on the same network segment as your machine ie no routers involved?
worth checking the MTU (maximum transmission unit) size for the interface;
From an elevated command prompt - type
netsh interface ipv4 show subinterfaces
The MTU size appears in the first column if this is set to 1500 or above try the following (assuming your newtork connection is called Local Area Connection)
netsh interface ipv4 set subinterface "Local Area Connection" mtu=1360 store=persistent
You may be encountering packet fragmentation and increased numbers of retrys. Although 300Mb taking 16 hours, works out at around 56kbps.
If this improves things, let me know, I can take you through optimising your MTU sizing.
Is the server on the same network segment as your machine ie no routers involved?
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Floyd
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16 March 2001 04:14 PM