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Engine download doesn't start

In the launcher when i choose the engine version and click in the install button, it says: ''please wait..'' and then the install button appears again and nothing happens; the marketplace is working fine. and my internet is very slow, 1mb, i dont know if this is the problem.. thanks!

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asked Jun 19 '14 at 10:22 PM in Installation & Setup

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2 answers: sort voted first


From reviewing logs of users with this issue we have seen checking for access will interrupt and cancel a download if the check is performed while the users download is still in the stage of pulling down the manifest.

When this occurs the user will see "Please Wait" for any UE4 download, but after the check the "Install" button will actually return instead of the download progressing as intended. After the check the user is able to click install and get UE4 with no problem. However, if the users connection and download speeds are temperamental, they could perpetually encounter this issue.

Theory - Modifying the access check timer to a larger value will resolve the issue.

  1. Close the launcher if it is running

  2. Go to C:\Program Files\Unreal Engine\Launcher\Engine\Programs\NoRedist\UnrealEngineLauncher\Config

  3. Open the file DefaultEngine.ini in a text editor

  4. Copy and paste the text from the block below to the bottom of the file.

  5. Close and save the file.

6. Launcher the Launcher



Please post your results here whether successful or still ongoing..



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answered Jul 08 '14 at 03:07 PM

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reddaze STAFF
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avatar image ECE-DEV Jul 09 '14 at 07:39 AM

thanks a lot, its downloading now

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Hi jeferson,

Hmm, this sounds like a problem with either the connection to our servers, or the connection to the cloud storage we use. The best way to diagnose this further is to enable very verbose http logging. Can you edit Engine.ini in the following directory:


and add the following lines:


Try running the launcher again to reproduce the problem, then shut down the launcher and post your latest log from:


We should be able to diagnose things further from there. Thanks!


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answered Jun 19 '14 at 10:58 PM

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Carlos Cuello STAFF
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avatar image jeferson Jun 20 '14 at 01:09 AM

hi Carlos,

it started the downloading, i dont know what was the problem, but it is working now.

thanks! =)

avatar image ECE-DEV Jul 07 '14 at 06:51 AM

i have the same problem but how can i post the latest log?

avatar image reddaze STAFF Jul 07 '14 at 01:56 PM


Once you have the log or logs please add them to a zip file. Add or reply to the comments here on answer hub and click the paperclip icon above the text editor window. Then click "Choose File" navigate to the zip you created and click Open, then Upload.

avatar image reddaze STAFF Jul 08 '14 at 01:48 PM

Thanks! We'll get this reviewed and see what we can find.

If there are any other log files in the folder please feel free to zip them all up and post theme here. All the data points we can get will help.

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