Accessing the Qlik Sense Hub or QMC fails. The following error is printed on screen with a Qlik Sense logo.
404 - Not Found The following URL is unknown: /hub/
The error indicates that the connection attempt reached the Qlik Sense Proxy service that the page requested was not found by the service.
![17114974.png 17114974.png](https://community.qlik.com/t5/image/serverpage/image-id/55035iECDAEC9A5038318B/image-size/large?v=v2&px=999)
For 404 errors due to the service not responding or not being reached such as the one below...
![404 not found.png 404 not found.png](https://community.qlik.com/t5/image/serverpage/image-id/55025i457447C739244E74/image-dimensions/248x123?v=v2)
... please see Qlik Sense Hub and Management Console show "Not Found HTTP Error 404. The requested resource is not ...
Environments:
- Qlik Sense Enterprise on Windows, all versions
Cause:
The user is requesting a page from Qlik Sense that does not exist (while it may or may not be configured to exist) on the Qlik Sense server.
Resolution:
This error is most commonly caused by a badly configured proxy prefix.
- If you are seeing the issue for both Hub and QMC, verify that the prefix used is correct. Example: my-https://proxy-server/virtual-proxy-prefix/hub or https://proxy-server/my-virtual-proxy-prefix/qmc. If the string for my-virtual-proxy-prefix is not a valid prefix, remove the prefix and try again without them. e.g: https://proxy-server/hub or https://proxy-server/qmc .
- If you are seeing the issue for both Hub and QMC, also verify if the hostname used is correct.
- If the issue only impacts a Virtual Proxy then you can use QMC in order to:
- Verify that the Virtual Proxy is correctly configured and points to a valid proxy node.
- Semicolons or other special characters cannot be included in the Qlik Sense proxy prefix.