Advertisements I have a bolt vox on software version 21.9.7.v8-usc-11-849. I’m with Spectrum cable so there’s a cable card in unit. It mostly works fine but I occasionally find that one of the four tuners isn’t being buffered. A reboot will fix it for a while but it returns again after a few days. I’ve turned suggestions off with no improvement. For the affected tuner, as long as I remain on the channel, it will buffer but if I switch to another tuner and then return, the buffer will be reset (empty) again. This seems like a software problem so wondering if anyone else is seeing similar. Thanks for your advice.