I already have a TIVO box, but now have had an additional V6 box installed. I was under the impression that the two could work together when networked. The TIVO box is connected to my hub via a powerline adapter - something that has allowed me to use TV Anywhere app to set recordings remotely when away. The installer has only set up the new V6 box wirelessly. When I tried to use an ethernet cable and powerline adapter with the new box I got an error message requiring an engineer call out, so reverted to previous wireless configuration and working ok. Will an ethernet connection be necessary to (a) enable remote recording with the phone app and (b) allow the two boxes to share recordings (if possible)?