If you read the reviews/performance of the rangextd, they're horrible.
I'd have to agree with @CrimpOn to send them back.
I usually recommend to people that if you're needing more than 1 extender, to move to an actual mesh system like orbi.
they're a lot faster, more stable, and just work.
And I usually push towards the triband orbi's because of the dedicated wireless backhaul. the only times I don't is when people are using a wired backhaul. Then the dual band (like the nighthawk mesh MK62/63) work great.
Should you try to keep the system, keep in mind that standard single/dual band extenders drop 50% performance for every hop in the chain. This happens because they use the same chip to go router----extender and then extender-----device. And they can't communicate at the same time.
so your first router---extender-----device is at 50% speed at best because the extender also takes a speed hit due to distance/interference.
If you add another one (daisy chain) like router------extender------extender-----device. Then you're at 25% speed. again at BEST.
Star configurations only have a 50% loss because they only connect to the router. but they tend to be unstable when using multiples, in my experience.
