Place your eero device centrally. If you have a dead spot, try to place your new eero device between the dead spot and another eero device to ensure a strong connection
Make sure it is Out in the open: eeros communicate best when theyre not closed in try not to place your eero(s) inside a media console or cabinet, behind or underneath any large furniture.
Place it Away from large electronics: Avoid placing your eero device in front, on top, or under any electronics or appliances as metal objects can block wifi signals.