ThankU Alex.
I have checked thinger help, but do not really understand what kind of script I need to set on Modbus / Modbus data to server / "custom header" bottom field.
I asume that router is a HTTP device, so , focused in reading these help.
Checked with a free mosquitto server without authentication, and works fine, but when tried to point to thinger, do not get "connected" un thinger website. 