                                                             Last Revised
    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1789          01/06/98

    TITLE:  Xircom CEM28 Ether/Modem in Ascentia P

    ISSUE

       Under Windows 95 on an Ascentia P, the system may not recognize
       the Xircom CreditCard Ethernet+Modem 28.8 (CEM28) in Dial-Up
       Networking or may not dial properly in HyperTerminal.

       This issue may affect all Ascentia P laptops or any system using
       PCMCIA.

    BACKGROUND

       N/A

    ACTION

       To resolve these issues, flash the CEM28 to firmware version
       4.42, or higher. File CEM28AUP.EXE contains the flash upgrade.
       Obtain this file from Xircom Customer Support at (805) 376-9200
       or from Xircom's World Wide Web site at the following address:

              http://www.xircom.com/Tech/Software/

       AST also recommends that you obtain files CEM28DRV.EXE and
       CEM28INS.EXE which contain the latest drivers and install the
       software, respectively. Obtain these from the same locations.

       Follow the upgrade instructions in the README.TXT files contained
       in each self-extracting archive.

    NOTES

       N/A

    TAN 001800DS

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