Re: Maximum File Size For Download
- From: "Phil Weldon" <not.disclosed@xxxxxxxxxxx>
- Date: Tue, 17 Jul 2007 17:10:21 GMT
MTU has nothing to do with transmission file size, only the packet size.
Picking an optimal MTU size can increase thruput, but doesn't affect file
size.
Phil Weldon
"nass" <nass@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:453F6D61-1E28-4537-909E-77F483259643@xxxxxxxxxxxxxxxx
|
|
| "Jim Reed" wrote:
|
| > I am running XP Home, V5.1, SP2.
| >
| > I occasionally download backup data files from a web site that tend to
get
| > as large as 20 or 30 MB. Recently, I have lost the ability to download
| > files this large. The download will begin and after part of the file
has
| > been downloaded, it will get stuck. After being stuck for about 45
seconds,
| > a dialog box pops up that says I am unable to download that file because
the
| > connection to the server was reset.
| >
| > When I first observed this, it would get stuck at the 4 MB level. When
I
| > tried doing this yesterday, I was able to get to the 8 MB level. I have
not
| > knowingly adjusted any settings to cause this, but they may have been
| > changed while doing routine updates.
| >
| > The technicians that run the web site say there is no problem with the
web
| > site, and my internet provider says there is no problem on their end and
| > that the problem is probably due to a setting on my computer.
| >
| > I saw article number 900900 in the knowledge base that referred to a 50
MB
| > limit for downloading, but the files I am trying to download are much
| > smaller than that. I tried to follow the directions in that article and
set
| > the limit at 50 MB, but it did not improve my download performance.
| >
| > Does anybody have any recommendations on what I need to do? Thank you
very
| > much in advance for your help!
|
|
| You need to increase the Maxim Transmission Unit (MTU) on your PC to be
able
| to finish the updates:
| Open a run command and type in:
| regedit.exe click [OK] and locate this Key:
|
[-]HKEY_Local_Machine\System\CurrentControlSet\Services\TCPIP\Parameters\Interfaces=
| DWORD (1472)
| HOW TO: Change the Default Maximum Transmission Unit (MTU) Size Settings
for
| PPP Connections or for VPN Connections
| http://support.microsoft.com/kb/826159
| Also see this pecs here:
| http://support.microsoft.com/kb/314496/EN-US/
| Recommended TCP/IP settings for WAN links with a MTU size of less than 576
| http://support.microsoft.com/kb/900926
| Also if you have a Web accelerator can corrupt the Download or disrupt it.
| Check your firewall not setting the file Limit to your system.
| Also try this tool for the winsock fixer:
| http://www.nasstec.co.uk/tools.html
| Download and runn then it will ask you to reboot, do so and see if you can
| download more than 30MBs.
| HTH.
| nass
.
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