Q: I'm thinking about dropping cable TV, but keeping cable internet service for streaming TV.
Right now, the speed of my Comcast Xfinity X1 Triple Play internet service is 87 megabits.
That's enough to support a mesh Wi-Fi system, in which three Eero Wi-Fi devices create a single wireless network throughout my home, as well as three wired connections for a VoIP (Voice over Internet Protocol) phone, an alarm system and a security camera DVR.
The Wi-Fi network is now used by my laptop PC and my smartphone, but I'd like to add two TVs that would simultaneously stream programs from Netflix or Sling TV.
Will my present internet speed be enough to handle all that?
Jim VanZant, South Bend, Ind.
A: In theory, you have enough internet capacity to handle all those devices. But in practice, you may not. Here are the main issues:
1) Your internet speed is advertised at 75 megabits, and that's what you should plan on having. Because of the way Comcast designed its system, your connection may sometimes surge up to 90 megabits, but you can't count on that.