Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
I deactivated Firewall for every type of connection and I am still getting the error. I have Eclipse Oxygen (December 2017, Version: Oxygen.2 Release (4.7.2) Build id: 20171218-0600) and GNU MCU Eclipse 4.3.2.