SNA Server Rejects FMH-5 Attach Intended for TP on NT Client (166623)

SYMPTOMS

Even though an auto-started invokable APPC or CPIC Transaction Program (TP) is configured on an SNA Server Windows NT client computer, SNA Server may reject the host FMH-5 Attach request and log the following error

Event ID: 60
Source: SNA Server
Description: Failed to invoke APPC TP <tpname>, sense data = 084C0000

where 084C0000 refers to AP_TRANS_PGM_NOT_AVAIL_NO_RETRY.

CAUSE

When the SNA Server Windows NT client loses its sponsor connection to the SnaBase service on the SNA Server, the client does not alway report configured TPs to the server when the sponsor connection is re-established. This can occur if SNA Server is restarted while SNA Server Windows NT clients have active sponsor connections and are not restarted.

A timing window in the SNA Server Windows NT client software causes this problem to occur; the probability of the problem may increase as the client processor speed increases.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 2.11, 2.11 Service Pack 1 (SP1), and 2.11 SP2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Microsoft has confirmed this to be a problem in SNA Server versions 3.0 and 3.0 Service Pack 1 (SP1). This problem was corrected in the latest SNA Server version 3.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K