I thought I had solved my wireless networking problems when I decided to let Windows manage my wireless network adaptor. When my Asus notebook computer starts, it establishes a connection. However, when I put Windows on Standby and then Resume my session, Windows still has the same connection problem.
Since there are no newer drivers from Asus, I tried the latest drivers from Intel. They're available from either the PRO/Wireless 2200BG support page or use the Intel support site and enter pro/wireless 2200bg in the search field. Download the PROSet/Wireless Network Connection Software (WIRELESS_TIC_131935_V10.5.2.0_XP32.EXE) which contains the drivers and Windows GUI. After installing it, my wireless adaptor driver was upgraded to version 188.8.131.52. Now I can use my wireless connection after Standby and Resume.
As per course, I rebooted my laptop. Now the Asus HControl.exe could not start. On Asus laptops, users can use keyboard shortcuts to turn off and on features such as the DVD player, display output, speaker volume and (you guessed it) the wireless adaptor. I've fixed this problem previously for another Asus notebook simply by reinstalling the not-so-obvious ATK0100 ACPI Utility. This time, no luck with using the support software for my M6R model. Then I found another version but for the Asus A3 model. Installed it and it works!