Oh yeah. I'm frustrated over here, and I've sent it as Feedback ...but I don't know how to fix it. I enter the workshop mode and it shows it has power and the only thing missing which indicated by the red color is the NPC ... but he thinks there is no power.

There are alot of other ones that I can get by..but this feature I depend on alot clearing big patches of baddies.

Hope they fix it soon. It's happening to alot of people.

Yesterday i reloaded an old savegame where the radio tower is working, but when i enter the workshop mode and assign some extra npc i had in the castle to other settlements, the radio tower go off and well i can′t get it to work again and the famous bug start running.

Yeah as previously stated this is a bug that is affecting A BUNCH of people. It's not a terrible issue seeing that you really don't need radio freedom for small Minutemen quests, you just get information from Preston. You also can't really use artillery in the battle at the castle, because the Synths are too close anyway, so he doesn't HAVE to be using the radio for that battle. IT IS a problem however, when you literally can't finish the large Minutemen quest to destroy the Prydwen, because he can't call the artillery strike. This hopefully might get fixed, but it is an issue. It seems to be caused so many different ways too. It happened to me when I put a bell in the Castle to organize my settlers, and when I rang it he got out of the chair, and will never sit down. It doesn't matter how much power the tower has, he (the NPC) is broken. Like I said, hopefully Bethesda will fix it soon, so we can all go about living with daunting, unfinished Fallout 4 quests lurking over our heads every time we play the game.