A:AnswerNot sure what you mean by (Nodes) but what’s nice about these it has a dual band so if ur not sure on what band any devices use it will connect automatically!
A:AnswerYes you can. One eero needs to be hardwired to the internet/modem but other wireless eero (With ethernet ports, make sure to not get the Beacon or the eero 6 extender, those two models do not have ethernet ports) can use their ports to connect devices or a switch to.
A:AnswerYes, the eero works with any internet provider. It just requires that the gateway/head eero have a hardwired/ethernet connection to the internet/modem.