WebDAV is currently undergoing a major overhaul so will not be available for some time unfortunately. In the meantime we would recommend using our native applications connect to Icedrive. You can find them here: Mounted Cloud Storage for Desktop & Laptop - Icedrive
I can log in but whenever I try to upload or download a file over webdav I get “network error” message. Briefly a couple of weeks ago was able to upload a file over webdav with reasonable speeds but download seemed limited a 0.7 mbps. I wonder if they throttle the speed so much that webdav is basically unusable. Anyone willing to subscribe to icedrive should be made aware of this