Bosch EasyControl displays error C19 and cannot complete time synchronization or shows incorrect time repeatedly.

Safety first: No electrical risk; this is a network/configuration issue.

• 1. Confirm internet access: Ensure the EasyControl has a working internet connection (no C6 error).
• 2. Check router settings: Allow NTP (Network Time Protocol) traffic or disable strict firewall rules that may block time servers.
• 3. Verify time zone: In the Bosch EasyControl app, ensure the correct region and time zone are selected.
• 4. Manual time (if available): Set the time manually as a temporary workaround if the option exists.

Professional help: If C19 persists with good internet and correct settings, the internal clock hardware may be faulty and the unit may require replacement.