I filled in all the fields of dynamic ESS setup and it concluded with the message that I can use it now.
But a while later a popup stated that I can't turn it on as 2-way connection is turned off. But that is on.
The slider shows "on" now in the "settings" "Dynamic ESS" tab but in remote panel there is no sign of Dynamic ESS.
further I can't turn the thing off, as an attempt to move the slider back immediately invokes the "no 2 way communitation" popup.