Hi guys,
I just feel I need to write down somewhere my breakthrough with unleashing the performance of Asus USB-N66 Dual Band Wireless N Network Adapter which took me almost 2 years to achieve
I hope someone there could still be using this wifi usb adapter.
So, 2 years ago I decided to build the ultimate wireless environment at home and I bought RT-N66U router and USB-N66 wifi adapter for my desktop computer. The performance was nice (~200Mbps@5G/40Mhz channel width), but not "ultimate", same is valid for stability - there were random errors with accessing the default gateway, especially after connecting for the first time after rebooting Windows.
After a lot of digging I found the the culprit: the device's IP task offload support is buggy.
After disabling the option from Windows, I spiced it with some general performance optimizations like disabling TCP heuristics, also chimney offload, enabling Direct Cache Access and ctcp congestion provider and the problems went into history. Now I have a stable connection with perfect speed and stability (~270Mbps).
Note that the router and the adapter are separated by a 30cm thick concrete wall and 7m distance.
The setup:
Router: RT-N66U, firmware 3.0.0.4.376.1071, Wireless settings in the pictures.
Wifi adapter: USB-N66, driver version 1.0.0.7 Asus official (do NOT use the general drivers from Mediatek for RT3573 - they cause many "strange" effects!)
OS: Windows 7 Home Premium
The details are in the images below.
If you're not familiar with netsh and you need the full set of commands to tweak your settings, please let me know and I'll add it.
I just feel I need to write down somewhere my breakthrough with unleashing the performance of Asus USB-N66 Dual Band Wireless N Network Adapter which took me almost 2 years to achieve
I hope someone there could still be using this wifi usb adapter.
So, 2 years ago I decided to build the ultimate wireless environment at home and I bought RT-N66U router and USB-N66 wifi adapter for my desktop computer. The performance was nice (~200Mbps@5G/40Mhz channel width), but not "ultimate", same is valid for stability - there were random errors with accessing the default gateway, especially after connecting for the first time after rebooting Windows.
After a lot of digging I found the the culprit: the device's IP task offload support is buggy.
After disabling the option from Windows, I spiced it with some general performance optimizations like disabling TCP heuristics, also chimney offload, enabling Direct Cache Access and ctcp congestion provider and the problems went into history. Now I have a stable connection with perfect speed and stability (~270Mbps).
Note that the router and the adapter are separated by a 30cm thick concrete wall and 7m distance.
The setup:
Router: RT-N66U, firmware 3.0.0.4.376.1071, Wireless settings in the pictures.
Wifi adapter: USB-N66, driver version 1.0.0.7 Asus official (do NOT use the general drivers from Mediatek for RT3573 - they cause many "strange" effects!)
OS: Windows 7 Home Premium
The details are in the images below.
If you're not familiar with netsh and you need the full set of commands to tweak your settings, please let me know and I'll add it.
