Gradle : Maven artifact search list is always empty

Hello,

My problem :

When I try to add a new dependency in my Gradle build file from the generate menu, the Maven Artifact Search window is empty.

Technical details :

The problem occurs on a freshly toolbox installed IntelliJ 2020.1.1. My actual JDKs, v8 and v14, all have been downloaded directly from IntelliJ. The Maven version installed is 3.6.3 and the Gradle wrapper is from version 6.1.

What I did :

• Updated the Maven repositories indexes.
• Switched JDK version.
• Tested dependencies in a Maven project. The dependency generation window is still empty, but I can use auto-completion when using a template, which means the indexes work properly.
• Back to Gradle project, I tested adding a dependency via the Project Structure panel and it worked properly. But the search window is still empty.

I am quite new to Gradle and build tools in general and I am no expert in IntelliJ. Did I miss something ? I searched all day long, but I don't have any clue of what can be causing this. Any idea ?

Thanks you in advance,

Alban