    =

    AST RESEARCH, INC.           TECHNICAL BULLETIN # 1049                 1-18-95

    =

                          BRAVO MT WITH TC4045 CARD AND AS/400

    PROBLEM:        1. The Bravo MT system hangs when trying to connect to an IBM
                       AS/400 system through an SAA Gateway.  The system displays
                       a message that the LAN server is disconnected after 10-15
                       minutes of inactivity when, in fact, the LAN connection is
                       still there.

                    2. After loading the Thomas Conrad driver TCTOKSH and trying to
                       copy files, the system returns several ABORT, RETRY, FAIL
                       error messages.

    CAUSE:          Incompatibility between the Thomas Conrad TC4045 Token Ring
                    card and the IBM host environment.

    SYSTEMS
    AFFECTED:           AST
                    PART NUMBER     DESCRIPTION

                    501278-008      BRAVO MT

    SOLUTION:       Use an IBM LANSUP driver instead of the Thomas Conrad TCTOKSH
                    driver.

                    The following is an example of all driver configurations in
                    AUTOEXEC.BAT:

                         LSL
                         LANSUP
                         ROUTE
                         IPXODI
                         NETX
                         N:LOGIN

                    Add the following lines to the CONFIG.SYS file:

                         DEVICE= DXMA0MOD.SYS
                         DEVICE= TCC_CPI.EXE B=2X
                         DEVICE= TCC_AHI.EXE

                    Modify the Link driver option to LANSUP instead of TCTOKSH in
                    NET.CFG.  Edit NET.CFG as follows:

                         LINK DRIVER LANSUP
                         PREFERRED SERVER=
                         FRAME TOKEN-RING
                         PORT=1A20
                         NDMA
                         INT=9
                         SHOW DOTS=ON
                         SPX CONNECTIONS=60
                         SPX ABORT TIMEOUT=2000

                    Save the configuration and reboot the system.