[SML] large group wifi has me spooked

Nigel Worsley niglew at googlemail.com
Wed Jun 8 14:06:28 UTC 2016


> In a week I will be involved with a meeting with between 100 and 150 attendees. All with interactive laptops
> and their smart-phones trying to grab the venues WIFI and internet access.

A few things to check:

How many simultaneous connections can your access points handle? For
home ones it can be as little as 10, probably 100 or more for a
business oriented one - still not enough for your application though.

Do you have enough IP addresses? If your router has the typical subnet
mask of 255.255.255.0 then you have 254 usable addreses, not enough if
you have 150 attendees who all have a laptop and phone. And what if
they have a tablet too?

How many connections can your router handle in it's NAT table? A
single phone could easily use up half a dozen of them for various
services (web, email, app store, notifications, Twitter, Facebook etc.
would all use a different one).

Only then do you need to worry about bandwidth. Have you considered
getting run over by a bus the day before the event? It may be the less
painful option!

Nigel Worsley




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