Sync seems to be stuck on `not yet synchronized, upload database`

[rmschne]

Perhaps first get your WebDAV syncing working inside your network, avoiding for not the complexity associated with DDSN, port forwarding, etc.

Then tackle DDSN but first reviiew @chrillek’s piece:

How to use Synology NAS as WebDAV sync location

Since the question arises occasionally, the following steps might help in setting up a Synology NAS as a WebDAV sync location for DEVONthink. This explanation uses port-forwarding. There’s a TL;DR about the basics that might help to set this up with another NAS. An alternative to port-forwarding would be to set up your router as a VPN server and your mobile devices as VPN clients to connect to it. install WebDAV from Synology’s packet repository in its settings, turn on HTTPS, leave HTTP off a…