Sswitch problems have historically fallen into one of two categories: * "Green" switches which were over-aggressively green. (*cough* TP-Link *cough*) * Switches with out-of-the-box broken IGMP settings. (*cough* Netgear *cough*) (There's always the odd case of the lunatic that installs 5 switches in a loop, doesn't realize that's why is network 'seems slow' in general, or that that's why the mini's can't keep track of their parents.) All of which are due to oddities of the specific switches or local network topology in question. There is no 'general' switch incompatibility with Tivos or Minis, of any generation. (I'm not saying you didn't experience the problems you did. Only that there was a specific, local reason for said issues).