# New release 5.0.3, unable to download extension

**URL:** <https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [July 27, 2022, 10:36am UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524 "2022-07-27T10:36:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ni5h](https://avatars.discourse-cdn.com/v4/letter/n/839c29/32.png) [@ni5h](https://discourse.slicer.org/u/ni5h)\
**Post date:** [July 27, 2022, 10:36am UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524/1 "2022-07-27T10:36:02Z")

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Operating system: windows  
Slicer version: 5.0.3  
Expected behavior: attempting to download MONAI, NVIDIA, slicerdevelopmenttoolbox etc etc  
Actual behavior: failed downloading: [https://slicer-packages.kitware.com/api/v1/file/62dfc5e5e911182f1dc9c00c/download](https://slicer-packages.kitware.com/api/v1/file/62dfc5e5e911182f1dc9c00c/download)  
Categories

It’s likely I am doing something very obvious but unsure why this is happening, should I revert back to an older version? I have not used 3d slicer for some months and attempted to install the newest version, but cannot download basic extensions,

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 27, 2022, 10:48am UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524/2 "2022-07-27T10:48:11Z")

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What operating system do you use? Which extension download provided you this invalid download link?

Does download work using the Extensions Catalog website? [https://extensions.slicer.org/catalog/All/30893/win](https://extensions.slicer.org/catalog/All/30893/win)

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**Author:** ![ni5h](https://avatars.discourse-cdn.com/v4/letter/n/839c29/32.png) [@ni5h](https://discourse.slicer.org/u/ni5h)\
**Post date:** [July 27, 2022, 2:52pm UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524/3 "2022-07-27T14:52:18Z")

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hi,  
[a] Windows 10, same as what I have used for all previous versions. [b] I had the invalid download link for all of the aforementioned extensions.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/2/524342a5ca2e17cb9d710196310ce13c2dac67b3.png)

Thanks  
Nish

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 27, 2022, 3:12pm UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524/4 "2022-07-27T15:12:53Z")

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These all work well for me. Are you behind a hospital/corporate firewall or proxy server?

If that’s the case then report this issue to your network administrators. While they fix the issue, you can download the extensions from the Extensions Catalog website and install from file.

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**Author:** ![ferhue](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ferhue/32/82557_2.png) [@ferhue](https://discourse.slicer.org/u/ferhue)\
**Post date:** [November 7, 2022, 4:15pm UTC](https://discourse.slicer.org/t/new-release-5-0-3-unable-to-download-extension/24524/5 "2022-11-07T16:15:52Z")

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I solved something similar by adding 8.8.8.8 and 8.8.4.4 to the DNS nameservers, without having to use any VPN.