He got the same problem and was also prompted by Finder to provide his credentials on which afterwards failed to copy because of the above permissions error. What I also tried to do was to give my files to a colleague which runs OS X Mountain Lion so he could attempt to copy the files to said volume. None of these attempts have managed to solve the problem I'm experiencing.
I therefor cannot copy files to this specific volume on our server. The operation can’t be completed because you don’t have permission to access some of the items. After I've entered my OSX user credentials I get an error stating the following: However, when I try to copy files to one particularly volume I get prompted by Finder to enter my username and password. I connect through the admin username and password for this server. I can also access and read the files on all the volumes (so far as I know). When I connect to a server on our company network with the SMB or CIFS protocol I can mount the volumes from that server. At this point I'm not exact sure which version. I'm running OS X 10.9 Mavericks on a Mac Mini. I've already read quite some articles on this issue but can't seem to find the specific issue I'm experiencing. First of all I'd like to say that I've spent most of the day trying to figure this problem out.