SUMMARY I have a Radicale CalDAV server for calendar and contacts. It is my Default calendar. It works OK with korganizer, except whenever the system resumes after a suspend, this server vanishes from the address books. Rebooting brings it back, though it's no longer the default, and the colour scheme has changed. The calendar entries are still there, thankfully, as is the configuration, passwords etc. in Settings. It's just the connection that vanished. STEPS TO REPRODUCE 1. Open a CalDAV calendar - usually through kontact, but the same behaviour when opened directly. 2. Suspend the PC using "Sleep", or just let Power management do it. 3. Resume. OBSERVED RESULT korganizer (or kontact) is still running, but the CalDAV server has vanished from the Calendars tree. EXPECTED RESULT It should still be there. SOFTWARE/OS VERSIONS Operating System: Gentoo Linux 2.17 KDE Plasma Version: 6.1.5 KDE Frameworks Version: 6.6.0 Qt Version: 6.7.3 Kernel Version: 6.11.6-ryzen (64-bit) Graphics Platform: Wayland Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: AMD Radeon RX 570 Series ADDITIONAL INFORMATION Radicale 3.3.0-1 running under Arch Linux on a Raspberry Pi 4.