So here was the solution for me coming from synology assistance (Malek was super nice to help me):
1/ On the NAS, in control panel, “external access”, tab DDNS : create a synology address… it will be something like that: <name>.synology.me
2/ On the NAS, Set a fixed ip address on the local network to the nas : to do that, go to control panel/network/tab:network interface and modify the LAN line “manual ip config” the line IP address with the number you want (for me 192.168.1.24)
3/ on your box, open ports 5001 (connect to it through its local address and modify its NAT configuration. open a port for your nas in TCP port 5001
so here, the nas is accessible fro the outside on its caldav
4/ on the android DAV5X, open it, add a account, select URL and there add put the URL: https://<name>.synology.me:5001/caldav/<your_id>/aiioyb/
and enter your <your_id> and your password (the one to connect to your nas, at the id session).
Etc/UTC timezone: VTIMEZONE doesn't have any components
After an update of davx5 on my smartphone (samsung galaxy A5), i have synchronization problems (see attachements).
Can I fix it ?
Seems like the new timezone minifying feature of DAVx5 3.1 doesn’t work properly with the Etc/UTC timezone. I’ll have a look at that.
Does another timezone work (e.g. Europe/London)? Is the UTC timezone intentionally?
How did you get the UTC timezone? Was this event created remotely and then you edited it?
Ok I just tried, but I couldn’t reproduce the problem. Can you please provide steps to reproduce the problem?
I undestand how to reproduce the problem.
I uninstalled Davx5 and then reinstalled it.
The synchronization was going perfectly.
No more error message.
I returned to my google calendar.
Events for which I have been invited are considered “unanswered”. I went on one of them and then I “accepted”. Immediately, the synchronization error message reappeared.