Waiting to sync...taking 4 days and still no network activity

Hello,

          I have been trying to sync a large backup file to my Dropbox account for 4 days and after a 30 minute period of 'Indexing', disk activity stops (Task Manager) and my system sits idle. Checking the Dropbox status icon in system tray(lower right) just shows 'Uploading 3 files' but there is no network traffic that I can see in Windows Task Manager and the 'Dropbox 32 bit' processes are all idle.

Per other users reporting this issue, I have tried uninstalling Dropbox on my PC, going back to an older version of the Dropbox desktop client (v.95), moving out the backup files from the Dropbox folder(repairing links using the Alt+h option in Accounts within the Desktop app.), and finally reinstalling the Dropbox app. again without the large backup file. After the last option, my sync'd/backed up files all complete indexing and checks against the online version of the files and Dropbox desktop app. gets to 'Idle' status. However, as soon as I tried to add back the backup file I want to backup to Dropbox, there is an intense 'Index' period showing in the Dropbox app. and then idle/'Uploading' with no network activity.

Please confirm if this is something others have experienced with a large file (over 250 GB) trying to sync/upload to their Dropbox account or if they have seen this with smaller files in the current desktop Dropbox app. - I am running 99.3.496.

Thank you.

JB