Manage the Reserved QoS Bandwidth (Windows 2000/XP)

This setting determines the percentage of connection bandwidth that the system can reserve for QoS traffic. By default, the Packet Scheduler limits the system to 20 percent of the bandwidth of a connection.

Open your registry and find or create the key below.

Create a new DWORD value called "NonBestEffortLimit" and set it to the percentage (in decimal) of bandwidth to reserve for QoS packets.

Restart Windows for the change to take effect.

Note: This can be change on an adapter-by-adapter basis by creating the same value in [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Psched\Parameters\Adapters\{Adpater-ID}].

Registry Editor Example
|NameTypeData|
|(Default)REG_SZ(value not set)|
|NonBestEffortLimitREG_DWORD0x00000032 (50)|
-
|HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psche...|
-
Registry Settings
System Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
Value Name: NonBestEffortLimit
Data Type: REG_DWORD (DWORD Value)
Value Data: Decimal Percentage (default = 20)

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