Hi all, Running a self-hosted instance of Joplin Server v2.4.8 on Ubuntu Server 20.04. Running the Joplin Server behind HAProxy. I can access the Server web UI with SSL termination provided by HAProxy/Let's Encrypt. The certificate is valid and doesn't expire until 6 December 2021. The syncing wa…

Post pinned at the top of the forum seems relevant. [image] Fix for "Certificate has expired" error with Joplin Cloud and self-hosted sync targets News Updates: The issue has been resolved in Joplin Cloud, so if you had the "Ignore TLS certificate errors" option enable…

Joplin Server Syncing Failed - Cert Expired - HAProxy

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dpoulton 1 October 2021 09:12 2

Post pinned at the top of the forum seems relevant.

Topic		Replies	Views
Certificate Error since upgrading to 2.4.9 on Windows Support	1	960	4 October 2021
Fix for "Certificate has expired" error with Joplin Cloud and self-hosted sync targets News	22	11312	9 October 2021
Sync failing Support	2	147	28 May 2025
Unable to sync Joplin - SSL cert error Support	3	136	18 December 2025
Sync to Nextcloud (Linux Ubuntu 20.04) Support	4	732	27 November 2021

Joplin Server Syncing Failed - Cert Expired - HAProxy

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