#1237 404 Error

[Sandol Lee]

1) Windows Version : Windows 10 Pro 1809 64bit
2) Outlook Version : Outlook 2016 MSO (16.0.4849.1000) 64bit
3) CalDavSynchronizer Version : 3.6.2.0
4) CalDav/Cardav Server and Version : Synology Calendar 2.3.3-0620
5) The logfile with DEBUG logs : I don't know where can I check the DEBG logs.
6) Synchronization Report : I attached the report.

Dear Caldavsync,
I was using your s/w very well through General CalDav to Synology Server.
But suddenly the s/w is causing a 404 error.

The only thing I changed is the s/w update.
The URL is correct and the account is also correct.
I can access the CalDav URL directly via IE.
(https://leesandol.cn8.quickconnect.cn/caldav/sandol/home/)

Please help me.
Thanks,
Sandol Lee

[Alexander Nimmervoll]

what does "test or discover settings" say in the sync profile settings? looks like a wrong calendar resource url.

[Sandol Lee]

Display the same warning. "Response status code does not indicate success: '404' ('Not Found')."

I initially thought it was a URL problem.
However, I can connect by entering the URL directly into Internet Explorer.
(https://leesandol.cn8.quickconnect.cn/caldav/sandol/home/)