errors when downloading a directory that has files with special character

I'm trying to download a directory (folder) using
wget2 -r -np https://example.com/folder/
the problem is that some files are not downloading
for example "A R&S B C.ppt" isn't downloaded
Adding https://example.com/folder/A R&S B C.ppt
HTTP ERROR response 404 Not Found [https://example.com/folder/A R&S B C.ppt]
if i open the directory using Firefox and download the same file, it downloads as https://example.com/folder/A%20R&S%20B%20C.ppt
i tried adding quotation mark, i still get the same issue, wget2 -r -np "https://example.com/folder/"
i tried wget version 1 it worked, it downloaded the file wget -r -np https://example.com/folder/