Connection failure to WMS/WMTS or WFS

Question

Why can't I connect to any of the Web Map Services (WMS/WMTS/WFS) in QGIS?

I don't think its a problem with the servers I'm using, but more about QGIS not being connected to the internet maybe.

The pop-up error is:

Host could not be found.

Examples of servers I am using:

Version: QGIS Desktop 3.10.2

At least the second one works for me after bypassing the error message about certificate error. The URL to connect is https://wxs.ign.fr/choisirgeoportail/geoportail/wmts?service=WMTS&request=GetCapabilities and I tested with orthophoto layer. — user30184, May 28, 2020 at 14:51
@user30184 On my end I can't connect to any server, the hosts can't be found. Is there an option I should enable before trying to connect to a web map service? — Pod, May 28, 2020 at 14:59
I do not know your network. If you are in a company network and external http traffic must go through a proxy server then yes, you must use proxy with QGIS as well. — user30184, May 28, 2020 at 15:16

Jhon Galindo · Accepted Answer · 2020-05-29 03:51:26Z

I try to use the first link and it works like this:

https://wxs.ign.fr/choisirgeoportail/geoportail/wfs

The second link is necessary to add ? between wmts and SERVICE

https://wxs.ign.fr/choisirgeoportail/geoportail/wmts?SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetCapabilities

Finally the last link does not have a wms service, but I found a few on the page, and I found this link: https://www.gmrt.org/services/

to visualize the service, you have to do the next steps:

Finally, you can select in the navigation pane and choose the service that you want to visualize.

Example of the third link:

Hi Jhon, my problem starts in your 3rd image. On my end it doesn't connect to any of the navigation services. Instead I have "Error al descargar posibilidades" — Pod, Jun 5, 2020 at 8:45

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