Sync errors with both Dropbox and OneDrive (self signed certificate)

Yes, I would to do that for onedrive…

This worked for me as well. Same conditions: fresh install of Joplin under Windows10 and the certificates problem; Went to Tools > Options > Synchronization, selected WebDAV, checked “Ignore TLS certificate error”, Apply, changed back to DropBox, Apply, and then I synchronized and it worked.


Thanks! That was the trick. Go to WebDAV and check "Ignore TLS certificate error" then switch to the way I wanted to sync!


Thanks ! Needed also that trick because my company FW is messing with certificates. :frowning:

Yep I also had the same issue. Had a fresh install of Joplin to my personal Windows 10 laptop (note: not a work PC like others in this thread) and set it up with OneDrive and it failed while syncing with an error that said it was "unable to get local issuer certificate". Going into the advanced setting for WebDAV and enabling "Ignore TLS certificate errors" allowed Joplin to successfully sync with OneDrive. Would suggest moving this checkbox out of the WebDAV synchronization advanced settings like the OP suggested since this seems to be a more widespread issue.

Has anyone had luck determining which certificate was causing the issue or bypassing this without fully ignoring TLS errors? I've been trying to use the custom TLS certs field under WebDAV to work with OneDrive, but it doesn't seem to recognize them and the error that I can see is almost no information. The URL that is failing in Joplin works perfectly in a browser that is using my local cert store.

Thank you for the tip. Using Joplin on the latest OSX and this was what finally got Dropbox to sync up.

Thanks for covering this.

It seems like the earlier poster's suggestion to move that setting out of the WebDAV section (or at least duplicating it in the other sections where it applies) is a good one.