Changing main deco X68 to E4R - it isn't in list
I have 3 Deco X68 units and one starting just dropping out so I moved it to the shed but now one of my other X68 units that is set as my main deco unit is constantly dropping out as well so I want to change it out as the main deco unit. I bought two E4R units about six months ago to extend to other areas so I would like to change the main unit to be one of them and the unreliable X68 into an area less critical.
However when I click on the set main deco option the E4R models are not in the list as option - how do I fix this?
I have researched and it appears those models can be the main unit
Thanks

