The rednet controller wont accept any inputs or emit any outputs. Tried running a passthrough signal for controlling extreme reactors control rods, nothing was happening. Hovering over the controller with Waila reads:

Programmable RedNet Controller
ERROR

Note the "error". I'm not sure what's up with that, I have tried to re-initialize it, I tried clearing it, all without any luck. Version 2.9.0B1

Update: Have also tried older versions, and also the very latest ALPHA version. Also tried different versions of CoFH Core.