When the ‘V’ icon appears in the upper part of the main WPmSCREEN screen, it indicates an incompatible version in project. It is recommended to verify all devices, that the firmware version is compatible with the project. In EclerNet Manager, select Help and in the User Manual you will find a document showing compatible firmware and software versions. Alternatively, in the file "EclerNet manager and related firmware LEGACY VERSIONS" (see here) you will find a historical record of updates of the different products that can be in an ECLERNET network. It includes a table describing, for each EclerNet Manager version released, which are the firmware versions for EclerNet devices compatible with it. The last row of this table is always the current version list, included in the ZIP file that you will have downloaded and that includes software, firmware and other documents (Setup EclerNet Manager (vx.xxrxx)), available at the following Link: