Adding an extender to an existing extender

Daisy chaining extenders is a challenge and usually results in lower speeds and increased latency by the very nature of how they work. I usually recommend people move to a true mesh setup if they're needing more than 1 extender.

But if you're going to do it, here's what I'd recommend. 

1. Make sure they each have their own ssid. So it goes Router (ssid)-----extender(ssid_ext)-----extender(ssid_ext2)

Reason why is it keeps the extenders from connecting in a loop to each other. When they do this, they're not connecting back to the router and it causes issues. Or the furthest extender can be trying to connect directly to the router when its on the edge of the range and not having a stable connection. 

2. Do a wireless scan. many times theres interference over wireless. It gets worse when you're running multiple extenders. make sure you're on the best channels for extending.

3. Check into using fastlane for the extenders. It can help reduce latency and increase speeds. Not always as it places a burden on the slower 2.4ghz band but sometimes is beneficial in these types of situations. 

https://kb.netgear.com/24662/What-is-FastLane-Technology-and-how-do-I-configure-it4.

4. Optimize placement. manytimes objects within walls like hvac can block signals. its even more important that you optimize placement when you're running more than 1 extender. Sometimes moving an extender a couple feet to the side, a little closer, or even a little further away can take those objects out of the broadcast path and increase your speed. Start by optimizing the one closest to the extender, then move to the one further away. 

You also don't put what your model of your primary router is. The router is the backbone of your setup. If you have a bad router, you're extenders are going to run poorly. many isp supplied routers aren't the best. Look up your model and check its performance. Maybe you don't need another extender. maybe what you need is a better router with a single extender. Simplicity can sometimes do wonders for a network. 

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