Microsoft reserves 20% of your bandwidth

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I have the below info for Win XP;
Microsoft reserves 20% of your available bandwidth for its own purposes (suspect for updates and interrogating your machine etc.) Here’s how to get it back:
Click Start / Run
Type: gpedit.msc
This opens the group policy editor. Then go to:
Local Computer Policy / Computer Configuration / Administrative Templates / Network / QOS Packet Scheduler / Limit Reservable Bandwidth
Double click on Limit Reservable bandwidth. It will say it is not configured, but the truth is under the ‘Explain’ tab:
“By default, the Packet Scheduler limits the system to 20 percent of the bandwidth of a connection, but you can use this setting to override the default.”
So the trick is to ENABLE reservable bandwidth, then set it to ZERO. This will allow the system to reserve nothing, rather than the default 20%.

I want to fix this in Win 7 Home Premium but that version does not have gpedit.msc. How do I get to the correct setting? Some say you do do this by editing the registry but which key? Any other way of checking this and setting the value to 0?

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James,

Here is a link I found Reserved Bandwith.
You’ll have to scroll down the page to find the method using direct registry editing. Hope this helps.

Note: One page I found says changing this parameter can affect things that depend on Quality of Service (QOS) operations like VOIP.

RG

May the Forces of good computing be with you!

RG

PowerShell & VBA Rule!
Computer Specs

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Thanks for the info. In my Ultimate the exact info shown for XP is also available for Win 7. I’ll have to see what affect if any this has.

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I have the below info for Win XP;
Microsoft reserves 20% of your available bandwidth for its own purposes (suspect for updates and interrogating your machine etc.) Here’s how to get it back:
Click Start / Run
Type: gpedit.msc
This opens the group policy editor. Then go to:
Local Computer Policy / Computer Configuration / Administrative Templates / Network / QOS Packet Scheduler / Limit Reservable Bandwidth
Double click on Limit Reservable bandwidth. It will say it is not configured, but the truth is under the ‘Explain’ tab:
“By default, the Packet Scheduler limits the system to 20 percent of the bandwidth of a connection, but you can use this setting to override the default.”
So the trick is to ENABLE reservable bandwidth, then set it to ZERO. This will allow the system to reserve nothing, rather than the default 20%.

I want to fix this in Win 7 Home Premium but that version does not have gpedit.msc. How do I get to the correct setting? Some say you do do this by editing the registry but which key? Any other way of checking this and setting the value to 0?

James

While marginally effective in win XP, disbling QOS is not going to give you any noticeable improvements in win 7 do to the way win 7 works. Is there a pressing need for bandwidth? what is it you are trying to do

ken J

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Read this thread carefully – QoS Bandwidth Reserve Limit – Vista Forums.

Also see What is QoS Packet Scheduler? The Broadband Reports Windows XP FAQ – dslreports.com.

See Quality of Service for technical details.

No Microsoft OS automatically reserves LAN bandwidth. QOS allows a program to register for priority bandwith. Then that program can use up to 20% of the LAN bandwidth. Remember bandwidth is NOT reserved automatically.

Joe

--Joe

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I did not notice ANY appreciable change with this mod. And with the articles Joe sited, I went back to default. At times I think it’s dangerous to dabble in things that I don’t know enough about and this is one of those areas. If I ever get the time to investigate, then perhaps, but not now.

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