Event ID - 18

Event Id18
SourceSNA TN5250 Server
DescriptionDescription: A TN5250 client attempting to connect from 172.18.83.17 with terminal type IBM-3278-2 was rejected.
Event InformationAccording to Microsoft :

CAUSE

The following internal TN5250 traces show that the TN5250 Service is looping within an internal memory management routine, which cause the service to become unresponsive:

RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft SNA Server 4.0 service pack that contains this hotfix.To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix
Reference LinksTN5250 Service Stops Responding and Logs Event 9 Error Messages

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