How does the speed drop when WI-FI is connected?

Question

Iron

I have long been interested in this question:
somehow an idea came up that, together with neighbors, they would chip in for a common wi-fi. But I expect that the speed will drop with each new device connected to the same network. Yes, and for sure the Internet provider will notice something wrong.

How to find out how many neighbors can really share the same wifi?

Answer 1

The speed will be the same for everyone. If you are downloading alone, and the rest are not at home, the entire band is yours, otherwise the speed will be divided approximately evenly between everyone (there may be an advantage towards the one who has faster hardware and a stronger signal).
The number of neighbors can be found based on the power of the access point (coverage radius), and the overall speed of the Internet connection and Wi-Fi (choose the slowest of the two). If you have a channel of 10 Mbps, then for 5 people in the worst case it will be 2 Mbps each, but, as a rule, everyone doesn’t download something big at the same time, the practical speed will be higher. (- speed losses in the Internet distribution infrastructure, but they are usually negligible compared to the speed of the Internet, you will not feel them).
Plus, the access point (router) may have an option to limit the maximum speed so that everyone receives no more than 2 Mbps, but in this case the band will often be idle, such a setting can be useful with neighbors who download a lot and constantly.
If the provider does not allow (like mine :)) - use it at your own peril and risk, but if they don’t come to the apartment, you won’t be able to see the distribution remotely, except perhaps an increased load on the network, but you never know what you loaded it with, maybe just large download torrents.

Answer 2

I'm suffering myself. I can not restart the machine and the LAN fell off. Turned on the WLAN card. Access point and router - Zyxel P-600. Slows down, bastard, opening pages.

On both machines from which I enter via wifi - the same problem. Although the speed test shows high speed results similar to a wired connection, and ping is on top.
Now I will look at why addresses are resolved so slowly, why sockets hang in time_wait for 5-15 seconds in netstat before the transmission starts. The DNS servers are the same, resolving at monstrously good speeds (for both wire and waffle). Why does the request hang like that - I'm looking for it. I'll post if I find it.

Answer 3

if you connect in router mode, then only the router itself will be visible from the outside and the provider will not see anything,
but if the neighbors start to launch torrents in unison, then even if there is enough bandwidth, the router will be bent
And in principle, the provider does the same thing, except that his hardware is better , and even then not always.

Answer 4

Depends on adapters, barriers, distance.
If the tariff is fast and / or there is a fast intranet, the speed drop can be noticeable.
A normal router + a normal adapter + an acceptable distance with one client - 100 megabits will pull out.

Answer 5

If the neighbors are good, then chip in so that possible problems can be shared without conflict. And if not, then you don't need to.