This is on a wired network and what's strange is that if I'm working on the mapped disk there's no problem, but if I try and copy a file from the mapped drive to say the system disk, that's when I get the error.
Immediately after receiving the error, I can go right back to working on the mapped drive editing files without issues. Trying the copy command again brings the error right back up. I've tried booting, un-mapping and re-mapping the disk but nothing seems to help.