Plug and Play Serial Devices Removed Temporarily During Printer Installation

• Microsoft Windows 95
• Microsoft Windows 98
• Microsoft Windows 98 Second Edition

SYMPTOMS

If you have an active connection that is using a Plug and Play modem and you complete an action (such as installing a printer) that re-enumerates the serial devices, the modem becomes temporarily unavailable and your connection is dropped. After the re-enumeration is complete, the modem reappears in Device Manager and works normally.

CAUSE

This behavior occurs because all child serial devices are removed and redetected by Serenum.vxd when re-enumeration is triggered.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

   Date      Time       Version    Size     File name     Platform
   ---------------------------------------------------------------
   10/08/99  8:08:29pm  4.10.2222  20,228   Serenum.vxd   Windows 95
   10/08/99  8:08:29pm  4.10.2222  20,228   Serenum.vxd   Windows 98
   10/08/99  8:08:29pm  4.10.2222  20,228   Serenum.vxd   Windows 98
                                                          Second Edition 

WORKAROUND

To work around this problem, disconnect any Plug and Play modems before reconfiguring devices.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words:

Keywords : kbhw win95 win98 win98se
Version : WINDOWS:95
Platform : WINDOWS
Issue type : kbprb