# Extension app store not accessible (http://slicer.kitware.com/midas3/slicerappstore)

**URL:** <https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550>\
**Category:** Support\
**Created:** [July 12, 2019, 3:28pm UTC](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550 "2019-07-12T15:28:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dittothat](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dittothat/32/4148_2.png) [@dittothat](https://discourse.slicer.org/u/dittothat)\
**Post date:** [July 12, 2019, 3:28pm UTC](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550/1 "2019-07-12T15:28:29Z")

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[http://slicer.kitware.com/midas3/slicerappstore](http://slicer.kitware.com/midas3/slicerappstore) is not accessible to me by multiple methods (multiple computers, networks, browsers). I need this to manually install an extension.

After a long wait in Chrome:

# This Page Cannot Be Displayed

The system cannot communicate with the external server ( [slicer.kitware.com](http://slicer.kitware.com) ). The Internet server may be busy, may be permanently down, or may be unreachable because of network problems.

Please check the spelling of the Internet address entered. If it is correct, try this request later.

If you have questions, please contact your organization’s network administrator and provide the codes shown below.

Date: Fri, 12 Jul 2019 15:02:13 GMT  
Username:  
Source IP: 10.72.76.203  
URL: GET [http://slicer.kitware.com/midas3/slicerappstore](http://slicer.kitware.com/midas3/slicerappstore)  
Category: Computers and Internet  
Reason: UNKNOWN  
Notification: GATEWAY\_TIMEOUT

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**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [July 12, 2019, 3:41pm UTC](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550/2 "2019-07-12T15:41:13Z")

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Short answer: Use this link and enter relevant information. See [http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout)

Long answer:

- The landing page is trying to find the most recent Slicer revision … but this is not done efficiently.
- We have plan to modernize the infrastructure and address issue like the one you reported. See [https://www.slicer.org/wiki/Documentation/Labs/ExtensionsServer](https://www.slicer.org/wiki/Documentation/Labs/ExtensionsServer)

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**Author:** ![dittothat](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dittothat/32/4148_2.png) [@dittothat](https://discourse.slicer.org/u/dittothat)\
**Post date:** [July 12, 2019, 3:45pm UTC](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550/3 "2019-07-12T15:45:34Z")

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That new link is golden. Thanks.