Articles

Crashing, Slowness, CPU/RAM spikes, and other Performance issues

• Kerio Connect Service Crashes and Restarts on Linux

  Overview Kerio Connect service crashes and restarts on its own every minute. Users are logged out of their webmail accounts with every restart. Prerequisites Kerio Connect installed on Linux OS (Debia...

• Memory Optimization

  Overview The Kerio Connect uses built-in memory (RAM) management for specific services like instant messaging and Fulltext search. These apps are written in Java and are designed to consume a limited ...

• Kerio Connect Server is not responding, Internet Connection and Communication errors

  Overview When the Kerio Connect server becomes unreachable, the clients can be disconnected with 'the server does not respond. Check your Internet connection' error. As a result, the email system may ...

• Kerio Connect mailserver is causing unexpected high CPU, RAM leaks or crashes

  Overview Mailserver service may occupy full CPU capacity and increase Memory usage, resulting in Kerio Connect server (mailserver.exe process) crashes, freezes, segfaults, high CPU, and RAM load. As a...

• Slow Folder Performance issues

  Overview While the Kerio Connect server is facing a High Open Folder count issue (e.g. INBOX, Sent Items), the performance in the admin GUI (search results in Outlook/Webmail, general responsiveness) ...

• Debugging Kerio Connect Crashes

  Overview You observe that your Kerio Connect application/service is crashing or displaying sluggish and degraded performance with a high CPU or RAM load (95-100%). Upon reaching the Hardware limitatio...

• Using Glances Tool to Monitor Unix Systems

  Overview Sometimes Kerio Connect may experience performance-related problems (CPU/RAM spikes, unstable overall User experience, system lags, etc.). This article provides information on how to monitor ...

• Error: 'Service startup failed...' - Kerio Connect

  Overview This article provides a solution to the issue with Kerio Connect startup, where customers report the following error: Service startup failed: Cannot start remote admin server on port 44337. T...

• Troubleshooting Performance Issues in Kerio Connect

  Overview This article shares information for troubleshooting the typical performance issues of Kerio Connect, for example: Kerio Connect server issues (high CPU or RAM usage, automatic restarts, and c...

• FullText and Kerio Index Search Clarifications

  Overview This article provides information regarding the difference between FullText and Kerio Index search engines.   Requirements Install 3rd party client applications as 'The BAT!' and try to searc...