This computer isn't linked to an account

Hi Mark,

Did you already do an advanced reinstall? If not, it might be worth trying it by following these instructions:

1. Stop Dropbox (If needed):

• Click the Dropbox icon in the menu bar at the top of your screen
• Click on the gear icon in the Notifications panel and select 'Quit Dropbox'

1. Download the newest version:

www.dropbox.com/install

1. Open your Terminal app (Located at /Applications/Utilities/Terminal)

2. Copy and paste the following lines into the Terminal, ONE AT A TIME, and press ENTER after each one. PLEASE make sure you copy and paste these commands (don't type them by hand), as getting them wrong could cause some harm. You'll be prompted for your computer's admin password (not your Dropbox password) after entering the first command. Keep in mind that the password field in the terminal will remain blank as you type your password. After you type it, just press ENTER.

sudo chown "$USER" "$HOME"

sudo chown -R "$USER" ~/Dropbox

sudo chmod -R u+rw ~/Dropbox

sudo mv ~/.dropbox ~/.Trash/dropbox.old

sudo chmod -N ~

sudo mv /Library/DropboxHelperTools ~/DropboxHelperTools.old

1. Open the .dmg file from step # 2 and double click the Dropbox icon to install Dropbox.

2. Restart Dropbox from the Applications folder, then please sign in and apply any Selective Sync settings you may have had prior to the reinstall during the sign in process. Your account will take a few moments to reindex the files and sync any pending changes.

I had this same problem. I tried every suggestion here. the only thing that finally worked was to change the proxy setting from 'auto detect' to 'no proxy'. Only then was I able to re-enter my credentials on the dropbox sync app on MAC (to link my account) . then dropbox did a massive sync of 1000's of files.

the biggest hassle is I had many files with the name "conflicted copy". I had to go and change the name of ALL those files back to the original names. this was because the files with the words 'conflicted cpoy' where in fact the latest copy.