Joplin in NAS Synology (webDAV)

Hi,

That's it, my synchronization with the Synology WebDAV server is complete on my two Windows PCs.

So I tried to start sync on my Android device and I indicated my ddns address like https://myname.synology.me:5006/joplin/ but after several hours nothing seems to have progressed: 6/6 sync objects/total. While I actually have 149200 objects in total.

I'm connected to my local WiFi, I read that could be the problem, what do you think?
I'm going to try with my local fixed IP in http... EDIT: same issue. I created a dedicated topic here:

Thanks