HTTP protocol error 407 authenticationrequired when creating a REST Connection

Sonja_Bauernfeind · Jun 7, 2021 7:40:33 AM

Creating a REST connection in Qlik Sense Enterprise on Windows and testing the connection results in:

HTTP protocol error 407 (authenticationrequired):
<!DOCTYPE HTML PUBLIC"-//W3C//DTD XHTML 1.0
Transitional//EN"

test connection 407 authenticationrequired.png

Environment:

Qlik Sense Enterprise on Windows
Qlik REST Connector

Resolution:

This is usually caused by one of the two:

The proxy server in the network requires authentication.
The REST Connector is out-of-date.

To resolve:

If the network is using proxy server which requires authentication, add proxy settings into the Rest connector configuration file:

Qlik Sense Server: C:\Program Files\Common Files\Qlik\Custom Data\QvRestConnector\QvRestConnector.exe.config

QlikSense Desktop: C:\Users\<user name>\AppData\Local\Programs\Common Files\Qlik\Custom Data\QvRestConnector\QvRestConnector.exe.config

Note: Please always make a backup before editing the original file.
```
<configuration>
...
<system.net>
    <defaultProxy useDefaultCredentials="true" enabled="true">
      <proxy usesystemdefault="False" autoDetect="False" proxyaddress="http://proxy-server:8080" />
    </defaultProxy>
  </system.net>
...
</configuration>
```
Verify that the REST Connector is up to date.

HTTP protocol error 407 authenticationrequired when creating a REST Connection

HTTP protocol error 407 authenticationrequired when creating a REST Connection

Environment:

Resolution:

Data Connection