Can't Open Multiple TN3270 Sessions After Upgrade to 3.0 SP1

• Microsoft SNA Server, version 3.0 SP1

SYMPTOMS

After you upgrade from SNA Server 3.0 to 3.0 Service Pack 1 (SP1), TN3270 users who are assigned multiple LUs to their IP address (to support multiple sessions) are only able to open a single session. This problem affects TN3270-only clients (not TN3270E).

When attempting to open a second session from the same TN3270 client, the TN3270 emulator receives the following error:

PROG 505

TN3270E Service Error 511 Telnet negotiation failure: client did not
send a valid configured TN3270 terminal type.

CAUSE

This problem was introduced in SNA Server 3.0 Service Pack 1, by the addition of TN3270 server support for multiple ports.

STATUS

Microsoft has confirmed this to be a problem in SNA Server version 3.0 Service Pack 1. 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

Additional query words:

Keywords : kbnetwork snatn3270 kbfix3.00.sp2
Version : WINDOWS:3.0 SP1
Platform : WINDOWS
Issue type : kbbug