How many computers in my house can be on wifi at once?
in theory, 255, which is the maximum number of IP addresses your router can work with. A couple of those can't be used, the one your router uses, and the last one, 255. In practise, having 253 computers might be difficult, and your router is probably only set up to hand out addresses from 100 to 200 or so.
If you are really wondering "can i set up 5, 10 or 20 computers?", not a problem.
Usually 127 wireless devices, maximum, but your wireless speed will be poor with that many devices connected at once
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