finder stuck in preparing to copy
So I recently update my computer to high Sierra. Ever since my computer has had issues moving files between my desktop and my companies external server which is used to store all company files. When I work on a document locally on my desktop and I try to move it to the server I get the pop up that the file is preparing to copy. It stays this way for hours and I am forced to quit the finder and relaunch. When I try to relaunch every file on my desktop disappears and my finder will not relaunch. I am forced to restart my computer.
I also have this issue if I pull up a document from the server such as an .ai file. I can work on the file but if I attempt to save it back on the server illustrator gets stuck ends up not responding and I am forced to quit that application losing all work. However I am able to resave this file on my desktop without issue.
This is a major problem for me because I cannot update any company files on the server.
I have reinstalled High Sierra. Restarted my computer many times and searched the internet for solutions but I have not found anything that works.
iMac, macOS High Sierra (10.13.2)