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I'm trying to download the new Mac OS. When click install, the icon pops onto the dock and says Waiting...

After about 5 minutes, it disappears and in the purchased category of the Mac App Store, next to install it says:

An error has occurred

Why is this happening?

Edit: Originally I could not even get the download bar in the purchased section until I reconfigured my router slightly(I'm using a BT Business Hub). I am now able to get the download bar. However, I still get "Waiting..." on the icon and after about 3 minutes, I receive the same error message:

An error has occurred

I still believe that it is a router problem and not the app stores' servers. Has another been able to fix this yet?

Here is a screenshot when I click the install button: A screenshot of when I click the install button

And here is a screenshot after about 2 minutes: A screenshot after about 2 minutes

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You won't be able to pinpoint the problem until you try to download the OS from another connection/router configuration. Until then, we cannot safely say if it's Apple's servers (doesn't seem like it if it times out so readily) or your router configuration... – cksum Sep 13 '11 at 19:39

4 Answers

I have sorted the issue. I just had to use a different router. The BT Business hub that I previously been using had a problem on it which prevented anything above 2GB do loose connection. This would explain other problems as well.

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Glad you've sorted things - do accept this answer if it's the best solution for you :-) – bmike Sep 13 '11 at 23:15

Because a lot of Mac users are probably doing the same download now. It's probably overloaded. After all 4 GB is a good bit bigger than an iTunes song or an iOS app.

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That might the problem so I will wait a few hours then. If this still occurs I will report back. – Ginger Bill Jul 20 '11 at 16:04
It seems that it is not servers being overloaded and something else(most probably my router). – Ginger Bill Jul 21 '11 at 8:56

I had a similar event. I was able to solve the problem by:

  1. Signing out the app store
  2. Closing app store
  3. Clearing cookies in safari (evidently app store uses safari's cookies)
  4. Reopen app store
  5. Sign-in to the App Store
  6. Press Option and click Purchases
  7. Click Resume on OS X Mountain Lion under Other Purchases

Maybe this will help?

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Make sure you have downloaded all the latest system updates - there is one which will prepare the mac app store for lion. I had the same problem and it seems to be working now!

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I have tried this and it has not helped at all, sorry. – Ginger Bill Jul 21 '11 at 8:53

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