Blizzard Downloader Troubleshooting
If you have problems with the Blizzard Downloader or problems downloading with the new Launcher when downloading a patch, please look over the notes we offer on our Blizzard Downloader FAQ, as well as the troubleshooting information below.
- Are you receiving an error that says "It appears that you are behind a firewall"?
Please take a look at our Blizzard Downloader Networking Help page.
- Is the Blizzard Launcher patch download stopping at, or less than 10%?
Please take a look at our Firewall section of our Networking Help page.
- Are you getting the data at an unusually low speed?
Try our page on Slow Download Speeds using the Blizzard Downloader.
- Is the downloader having problems connecting to the tracker?
Try our Blizzard Downloader is Unable to Connect to Tracker or Peers page.
- Are you receiving the error "Your network card is running an out of date driver"?
Try our Blizzard Downloader Network Driver Update Page.
- Are you receiving a "Could not initialize storage" or "Downloader is already downloading to that location" error?
Take a look at our Blizzard Downloader Destination Errors page.
- Are you receiving an error telling you that your "download may be corrupt"?
Take a look at our Blizzard Downloader Corrupt Data Errors page.
- Is the downloader application or your computer itself experiencing crashes or freezes or Does the downloader cause your computer to become extremely sluggish and unresponsive?
Try our Freezes, Crashes, or High CPU Utilization when using the Blizzard Downloader page.
- Are you receiving an error that says "Blizzard Downloader has encountered a problem and needs to close"?
Please take a look at our Blizzard Downloader has encountered a problem and needs to close page.
- Have you tried all of the above options?
As a last resort, you can try downloading the patch manually from a mirror site.
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