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Intel PRO/Wireless Issue

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by jep0233

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Apologies if this is not the right place. I have 2 Toshiba laptops. The older has an Atheros Wireless Adaptor. The newer has an Intel PRO/Wireless 2200bg adaptor. When both are sitting side by side, the same distance from the Verizon provided router, the older Atheros will maintain the "reported" 54Mbps forever. The Intel in the newer laptop will start there and quickly degrade to 1.0Mbps until you choose to repair the connection or turn off wireless and turn it on again. Using XP. Frustrated and clueless. Any help will be greatly appreciated.

9 replies

by jep0233

Thanks for the email tip, it's gone. The help page you included said that signals drop off becuase of various factors. Remember I mentioned that I have 2 Toshiba laptops with different brand adapters. The Atheros maintains a 54Mpbs sitting right next to the other laptop having an Intel, but the Intel quickly degrades to 1.0Mbps. This can happen even when the laptops are no more than several feet from the routher. The page also suggested trying to change the channel being transmitted on. Unless this is easy to do I probably won't persue it since it's obviously a tech procedure. Thanks for you time.

by Former member

Try this, delete the "20" and put "0".
If all fails then just set it back to "20" again.

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.
This tweak can be easily applied using WinGuides Tweak Manager.
http://www.pctools.com/tweak-manager/

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 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)

WARNING!!!!. Modifying the registry can cause serious problems that may require you to reinstall your operating system

Please post back if you have any more problems or questions.

by jep0233

Thanks for your information. It seems that a new driver did the trick. Months of frustration deleted. However, I have saved your information for any future reference and do appreciated it greatly. Thanks again greatly!! jack

by Former member

Please post back if you have any more problems or questions.

by jep0233

It seems as if your desire to help has paid off, to me at least, with great success. Thanks mate! The adapter icon on the taskbar seems to report 54Mbps at a constant rate. Months and months of frustration deleted. Thanks so much again. What a world. I get help from half way around the globe. "ave a good daaay!"

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