I am using with Internet Explorer 11 (64-bit) to work within certain libraries on a SharePoint Server 2016.
There are a few libraries containing a few 100 files, which I can perfectly access via the "Open with Explorer" button in the browser.
However, there is one library that contains a huge number of files (about 10'000 items), which cannot be opened like this, but the following error message appears after about 10 to 20 seconds:
(At first, the Explorer window appears and the progress bar begins to run, but as soon as I confirm the error dialog, the Explorer window becomes closed.)
It seems not to depend on the Windows version, because it is the same on a Windows 7 and on a Windows 10 machine (64-bit both). Also it seems not to be user-dependent, because I am not the only one having this issue.
It is not a general access problem (like described in other posts), because the library was accessible some time ago when there were still a few 1'000 items, and there was no server nor a browser upgrade. Also the compatibility settings of Internet Explorer (Document emulation mode in the F12 Developer Tools) do not change anything.
The problem even persists when I open a working library in Explorer and try to manoeuvre to the problematic one there.
What causes the described access problem? Is it some kind of timeout error that occurs due to the huge number of items? What can I do to prevent that, what setting do I have to adapt?