
eero
Pro 6 Series
Easy, reliable, smart home ready; but paid features.

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The two Deco needs to communicate together. The quality of that communication will determine the quality of the access of your PC to Internet. Ideally, Deco communicate via Ethernet. I assume this is not an option in your case. If Ethernet is not available, Deco communicate, generally, via wifi. The wifi signal is sensitive to obstacles and to interferences. Hence, in some cases, it helps to complement wifi with PowerLine. Two PX50 Deco will attempt to communicate simultanesously via wifi and via PowerLine. The communication via PowerLine goes via your home power network, and the quality of that communication is influenced by the way your power network is designed, and by interferences on the power lines.
The main Deco must be wired to its source of Internet. I would return the Archer, indeed, and build a mesh only with deco units.
3 Deco meshes in the family, purchased in 2020, 2024 and 2025, all working perfectly.
Tp link px50 is a decent consumer system.
I have just under 2000 sqft in a two story house (3 if you count the basement). I have my main deco router upstairs on one end of the house and the second on the main level on the opposite end. No matter where I am I get full strength signal. In the past my main level deco went offline and I noticed connectivity issues especially in the basement. With various iot devices like cameras and the thermostat stability matters more for me. Now that I’ve had a mesh network I don’t think I can ever go back.
IF you chose to go with tplink, at least get AX3000 system. Don’t buy the AX1500 system, it will underperform.
That's false, I'm already getting decent signal (80Mbps) through that 8 inches concrete mass, using Wifi 6 only. I'm now wondering if I could improve that using Wifi 7.
I just received the Wifi 7 mesh by TP Link (BE9300) and replaced my previous Wifi 6 mesh by TP Link (AX3000) and the difference is... massive. Through that 8 inches concrete mass I used to top at 80Mbps, with the new Wifi 7 mesh I now top at 210Mbps. So yeah there's definitely a noticeable difference !
Yep second TP link mesh, I use 3 of the AX3000 over a half an acre property (house out to shed) and don’t have any issues

eero
Pro 6 Series
Easy, reliable, smart home ready; but paid features.

TP-Link
Deco XE75 Pro
Great coverage, easy; but unreliable Ethernet, poor app.

eero
eero Max 7
Incredibly fast, reliable; but very expensive, limited control.

eero
eero Pro 7
Fast, reliable; but paid features, needs internet to function.

eero
eero 7
Easy, reliable coverage; but no 6GHz, paid features.