When you use a Transaction Integrator (TI) application thatuses SNA LU 6.2 connection to the mainframe, the application may hang and the following error may occur:
HISMSNA0015The SNATransport encountered an error calling internal method CMALLC whenprocessing method <MethodName>, LUName <LUName>. Details: Aninternal error occurred during processing of TP Started, error code = 4592.
The error occurs under certaincircumstances where a TP_ENDED command is not issued. This results in an increasingnumber of active TP sessions. When 15,000active TP sessions is reached, this error will be reported.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.