Microsoft KB Archive/195554

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BUG: Infrared Device Stops Functioning During Data Transfer

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Q195554

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The information in this article applies to:


 * Microsoft Windows 2000 Professional
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 95
 * Microsoft Windows 98

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SYMPTOMS
There is a known hardware problem with some older infrared controllers [National Semiconductor Fast Infrared Controllers] that causes them to stop functioning while transmitting or receiving at speeds greater than 115 kilobytes per second (Kbps). This problem is most common at 1 megabits per second (Mbps), although it does occur infrequently at 4 Mbps. This problem should not cause Windows to become unstable, although 1 and 4 Mbps infrared transfer speeds might not be available until the computer is restarted. Speeds of 115 Kbps or less should function without restarting.

RESOLUTION
If you encounter this problem frequently, you should limit the infrared connection speed to 115200 Kbps using the Control Panel.

STATUS
Microsoft has confirmed this to be a third-party (National Semiconductor) bug with the Microsoft platforms listed at the beginning of this article.

Keywords : kbDDK kbNDIS kbOSWin2000bug kbOSWin95bug kbOSWin98bug

Issue type : kbbug

Technology : kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWin95search kbWin98search kbWinAdvServSearch kbZNotKeyword3 kbWin98