If you have a problem with DAVx⁵, please: Try the latest DAVx⁵ version. Use the latest version of your server software, if applicable. Read the Configuration, FAQ and manual pages carefully. The most common issues are explained there. Try the forum search – most questions have already been answered. Have a look at the debug info/error details/logs. You can often get an idea what’s the problem yourself. Make sure that it’s not a server or networking problem. Have a look at your server logs and search the FAQ/forums/bug tracker of your server software, too. More information: FAQ: How to debug DAVx⁵-related problems When posting, please provide as much information as you can: debug info (see below), steps to reproduce (what you tried to achieve and what your problem is), your environment: server software (including version), do other clients work, etc. How to get debug info: If you get “No CalDAV/CardDAV service found” when you try to add an account: tap “View logs”. If you get an error notification while synchronizing: tap the notification. A debug info activity will appear. Otherwise, use DAVx⁵ / Settings / Debug info.