Is this strong enough for 2-story house?
Honestly don't know, I'm never more than 10 feet from it. I'll do some testing tonight
Thanks Stu. I suppose I can carry it around with me in the house if needed
I just had a wander round "testing", I get to about 30 feet before it drops off to 1 bar of 3 (used my phone, so not very scientific), that's through proper walls (bricks not board) and upstairs/downstairs. As you said, and as I do, it goes with me when I use it, so range isn't a concern.
To be honest though, if you don't need it to be genuinely mobile, I'd do what Dan or Juggalo says.
Buying a router is always a win, so long as you can set it up as either wifi range extender when you get one free with your fibre or as a switch. I've got one I use as a switch in another room and now have a wired connection far from my router for hooking up all the entertainment shizzle for TV, Sky and PlayStation.
You can't trust WiFi for non-mobile applications, it's just too invisible