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ZeljkoPMI3-Newcomer
3-Newcomer
May 28, 2026
Question

Problem with IOT sending data - Kepserver 6.17

  • May 28, 2026
  • 1 reply
  • 25 views

Hi,

We are facing with issue that we are not sending the data thru MQTT.
On Kepware side there was no message that we are disconnected from MQTT.

After several restarts of the Kepware IoT service, the problem was solved, but it reappeared after some time.

We have openlogic-openjdk-jre-8u482-b08-windows-x32 JRE version installed on Kepware server.

 



Thanks in advance.

1 reply

M
MRohillaCommunity Manager
Support
June 22, 2026

​@ZeljkoPMI Greetings,

If your Kepware version and operating system support it, upgrade the IoT Gateway's Java environment to a 64-bit JRE (e.g., OpenLogic OpenJDK JRE 8 x64 or newer, depending on your Kepware version compatibility matrix).
 

Because the Kepware log just shows the service stopping abruptly after the connection failure, the root OS-level crash reason (like a Java crash dump hs_err_pid.log or a Windows .NET/Application Error) will be recorded in the Windows logs.

  • Open Event Viewer -> Windows Logs -> Application.

  • Look for errors around the exact timestamps when the IoT Gateway service stopping messages appear. Look for mentions of javaw.exe, servermain.exe, or memory faults.
     

Regards,

Mohit 

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