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

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                      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.