Can range extenders be too close?

Sanders0492

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Nov 29, 2015
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So I know that interference (because of overcrowding the available channels) is an issue, but, assuming zero interference, what about too much overlap between 2+ access points for the same network?

Phones and laptops try to switch between APs to always have the best signal, right? So what if the APs are 10' from each other? Will your devices constantly be switching and degrading speeds?

The question is because ISPs these days like to send out modem/router combos and frown upon the owner opting for third party modems (AT&T doesn't even allow it with Uverse). Their wireless range and bandwidth often sucks and people start buying up range extenders and sometimes put 3 in an average-sized home. One day, at a friend's house, I noticed that my computer kept hopping between the APs as if they were fighting for attention, ha. He has the cable modem/router and two extenders all emitting wireless signals.

Does this hopping cause issues? Or would better results come from buying one really nice AP and putting it right in the middle of the home, then turning off the modem/router's wireless?
 

USAFRet

Titan
Moderator
Phones and laptops try to switch between APs to always have the best signal,

No, they don't do that. A device will try to hold onto the current signal from the current device, until it no longer works.
Then and only then will it try to connect to something else.

One of the main issues with residential installations is the location of the primary router /WiFi source.
Far too often, this is in the garage, or basement man cave.
100% wrong place.

That WiFi source needs to be near the center of the house, horizontally as well as vertically.
However, this may impact the WAF (Wife Acceptance Factor)
 

Sanders0492

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Nov 29, 2015
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Hm, I thought WiFi roaming was a more common thing. After reading for a bit, it does seem that most devices do avoid roaming as much as possible. I'm not sure why my laptop would have been constantly switching between access points at that fella's house, though. I guess they could have each kept failing, causing me to keep switching. But that's good to know!