On Fri, 1 Dec 2017 21:59:03 -0500, you wrote: >They work again after a reboot of the MBE. Rebooting SBE makes no >difference. They are a 4 tuner Ceton Infinitv and two tuners from an >HVR-2250. That does not sound like a tuner problem at all then. It is much more likely a problem where the MBE is unable to talk to the SBE properly.