    AST RESEARCH, INC.         TECHNICAL BULLETIN #0553A                 04-26-90

                             AST-3780 FUNCTIONAL ISSUES

    AST Data Comm Product Marketing has reviewed all aspects of the following
    functional issue relating to the AST-3780 product (part number 500113-001).
    They have made the determination that this issue will not be resolved for
    this product.

    This issue is as follows:

        - Records of data are duplicated when using the "P" command with CMDP
          mode.  After several repetitions of this action the file is received
          intact. (PR#A01056)

        - The 3780 IP program is not supported in an IBM Token Ring network
          environment.  The error message generated is "NET805": DEVICE NO LONGER
          EXISTS DRIVE XX.  Other systems on the network are no longer able to
          access this system after IP is invoked.  (PR#A01081)