https://community.qlik.com/t5/Official-Support-Articles/Qlik-REST-connector-error-quot-QlikView-Qvx-QvxLibrary/ta-p/1790941 <H3>Issue Description</H3> <P>&nbsp;</P> <P>Some users reported the generic error&nbsp;<SPAN>"QlikView.Qvx.QvxLibrary.QvxPleaseSendReplyException: Failed to connect to server" when trying to use the Qlik REST connector for a specific REST API.</SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Andreas_Giesbrecht_0-1615555480914.png" style="width: 400px;"><img src="https://community.qlik.com/t5/image/serverpage/image-id/51040i3E5595803594CA76/image-size/medium?v=v2&amp;px=400" role="button" title="Andreas_Giesbrecht_0-1615555480914.png" alt="Andreas_Giesbrecht_0-1615555480914.png" /></span></P> <P>&nbsp;</P> <P><SPAN style="font-family: inherit;">At the same time the REST API requests were working fine with some API testing tools like POSTMAN or via Chrome browser.</SPAN></P> <P>&nbsp;</P> <H3>Resolution</H3> <P>&nbsp;</P> <P>If you got this kind of error then an important troubleshooting step would be to try to access the REST API via Internet Explorer. If the Internet Explorer responds with a message like this then the reason of the connector error is the same that the reason why &nbsp;this URL cannot be opened in a Internet Explorer:</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Andreas_Giesbrecht_1-1615555784433.png" style="width: 400px;"><img src="https://community.qlik.com/t5/image/serverpage/image-id/51045iC7246ACB68637F07/image-size/medium?v=v2&amp;px=400" role="button" title="Andreas_Giesbrecht_1-1615555784433.png" alt="Andreas_Giesbrecht_1-1615555784433.png" /></span></P> <P>Something is blocking the Windows HTTP stack on your machine from opening that URL (<SPAN>Chrome uses other libraries so it does not rely on domain group security policies)</SPAN>&nbsp;.</P> <P>&nbsp;</P> <H4>Environment</H4> <UL> <LI>All versions of Qlik Sense and QlikView on-premise environments&nbsp;</LI> </UL> <P>&nbsp;</P> <H3>&nbsp;</H3> <P>&nbsp;</P> Fri, 12 Mar 2021 13:40:09 GMT Andreas_Giesbrecht 2021-03-12T13:40:09Z https://community.qlik.com/t5/Official-Support-Articles/Qlik-REST-connector-error-quot-QlikView-Qvx-QvxLibrary/ta-p/1790941 <H3>Issue Description</H3> <P>&nbsp;</P> <P>Some users reported the generic error&nbsp;<SPAN>"QlikView.Qvx.QvxLibrary.QvxPleaseSendReplyException: Failed to connect to server" when trying to use the Qlik REST connector for a specific REST API.</SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Andreas_Giesbrecht_0-1615555480914.png" style="width: 400px;"><img src="https://community.qlik.com/t5/image/serverpage/image-id/51040i3E5595803594CA76/image-size/medium?v=v2&amp;px=400" role="button" title="Andreas_Giesbrecht_0-1615555480914.png" alt="Andreas_Giesbrecht_0-1615555480914.png" /></span></P> <P>&nbsp;</P> <P><SPAN style="font-family: inherit;">At the same time the REST API requests were working fine with some API testing tools like POSTMAN or via Chrome browser.</SPAN></P> <P>&nbsp;</P> <H3>Resolution</H3> <P>&nbsp;</P> <P>If you got this kind of error then an important troubleshooting step would be to try to access the REST API via Internet Explorer. If the Internet Explorer responds with a message like this then the reason of the connector error is the same that the reason why &nbsp;this URL cannot be opened in a Internet Explorer:</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Andreas_Giesbrecht_1-1615555784433.png" style="width: 400px;"><img src="https://community.qlik.com/t5/image/serverpage/image-id/51045iC7246ACB68637F07/image-size/medium?v=v2&amp;px=400" role="button" title="Andreas_Giesbrecht_1-1615555784433.png" alt="Andreas_Giesbrecht_1-1615555784433.png" /></span></P> <P>Something is blocking the Windows HTTP stack on your machine from opening that URL (<SPAN>Chrome uses other libraries so it does not rely on domain group security policies)</SPAN>&nbsp;.</P> <P>&nbsp;</P> <H4>Environment</H4> <UL> <LI>All versions of Qlik Sense and QlikView on-premise environments&nbsp;</LI> </UL> <P>&nbsp;</P> <H3>&nbsp;</H3> <P>&nbsp;</P> Fri, 12 Mar 2021 13:40:09 GMT https://community.qlik.com/t5/Official-Support-Articles/Qlik-REST-connector-error-quot-QlikView-Qvx-QvxLibrary/ta-p/1790941 Andreas_Giesbrecht 2021-03-12T13:40:09Z