At my parents, I was wondering why their wireless router wasn't broadcasting properly so I took it upon myself to be a good son and improve the network. I'm bored and was sick of helping out doing yardwork. I grabbed my brother and went to the store and picked up a few things.
My brother, Mike, being the genius he is, decided to provide total house coverage we needed not 2 but 5 wireless access points due to the current poor performing dsl wireless router.
Now I'm not saying I'm a network guru but I thought this was overkill but that is my middle name so I went with it. After letting my brother set up 3 of the routers (I had to watch 300), I finally stepped in since he literally spent 3 hours doing it wrong.
This brings me to the first point, Know thy Network. The IP structure was 192.168.1.X for the DSL router and the AP's are belkins so they defaulted to 192.168.2.X. Attempting to hardcode IP's was a total cluster-F too since no one knew the dsl router's admin page. Turns out the actual DSL router's IP was .254 and we attempted to set one of the AP's IPs to 254. After a few quick adjustments, I got one of the AP's upstairs working and surprise, it covered the entire house PLUS a large chunk of the back yard.
This made me wonder, why did the first router suck so badly besides being the stock router that was given to my parents? The answer was the router was in a steel cabinet. This could only be worse if the router was in a Faraday cage. This is my second point, Would a dumbass do that? Areas with high voltage, microwaves, or steel cages will disrupt your data transmissions. So I've come to the conclusion my brother is a dumbass.
4 routers when 1 is doing the entire job. Maybe 2 if they want another section of the yard covered with a booster anntenna.