Netxcloud -> qnap -> webdav

Good morning. I use nextcloud 22.2.0. I’m trying to configure an external share that is on a qnap nas. from the “external storage” tab I was able to enter the correct parameters for the qnap share. however after 40 minutes lashare is still not available. I tried to access qnap via winscp and webdav protocol and obviously it worked. so nextcloud is doing something that I don’t know about, or there’s an error. I accept advice, thanks