Deco BE65

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 !

Depends on what you have as a router right now and what are your requirements and the final goal, if you have a dual band router, adding a latest tri band technology with it will be incompatible. Tp-link best pair with latest technology would be a BE600 router with RE653BE extender. Both are wifi7 triband and provide very wide area coverage without any drops and issues. Its is legacy compatible, so even if you dont have all wifi7 devices, it can still work with older wifi standards. Their prices are fluctuating right now, but might drop soon on Black friday or some other sale event.

No it does not if you select correct products and placements. I tested tplink be600 with RE653BE, which are both tri band wifi 7 devices. I was able to get full gig speeds constantly on easymesh, no wired backhaul. Now this was for a 2 story home, total 1500 sqft give or take a few. I was able to get gig speeds on every nook and corner of the house. 5ghz would give me 1.1 to 1.3gbps while 6ghz would give me 1.7gbps max. As the iperf test i was running to a pc with 2.5g ethernet port, so that was my limit for wifi. Many mesh devices and other brands wont be able to provide such as they dont have any dedicated backhaul for uplink. Different factors produces different results. But its not true that you cannot achieve it without wiring everything. Wired is always better but sometimes its not possible to run these across.

Well there arent much deviced capable of using MLO at thos point in time, i did rigorous testing and it didnt helped. Yes wired is always better if you have that option. But i cannot run it in a rental home, flat wire is good, but taking it from 2nd floor to 1st or even to other side of the home on same floor its just not worth in my case when i am able to get full speeds. It looks ugly and would cost too much time, money and effort to hide them. Most of my servers and main systems are wired already, so for others when i am getting gig speeds over wifi and not care about latency spiking hard. It fits my case. The reason for all this explaining is just for those who would think they cant get gig speeds over wifi. Everyone has their own setup and priority and if my experience with this can help anyone. That would be my goal.

Be600 with RE653BE works best

Running 2 x TP-Link Deco BE65, really fast WiFi speeds (maxes out my 500Mbps fiber even though I don’t currently have any WiFi 7 clients). It has a separate IoT network which I run all my HomeKit devices on. You can run these either wired or wireless backhaul and add additional Deco units if you need extra coverage. You can’t control it through HomeKit, but you can control Matter devices in the Deco app.

For context, I live in a basement apartment where the router needs to be located just outside the apartment. Given I am renting, I don't have the ability to run any ethernet cables into the apartment, or to the satellite units. I have a 1.5 GB/s service from my internet provider. I recently upgraded an old mesh system (Deco AC1300) that was not serving my needs to an Orbi 770 mesh system (1 router + 1 satellite). The speed has significantly increased with the Orbi system compared to the Decos, but the stability/reliability of the connection has been quite poor. I've used the Orbi app and other scanning apps to ensure the wifi is set to channels with the lowest amount of interference, which has helped, but has not eliminated the issues. In use, I am getting significant lag spikes and occasional disconnection issues, both while gaming, and in Teams calls. This has been experienced across multiple devices. While the upload/download speeds were much lower with the old system (as expected), I did not experience any of these reliability issues. At this stage, I'm looking at alternatives to the Orbi 770 as it is still within the return period, and for the price, the performance is frankly not acceptable. I do not necessarily need a WIFI 7 mesh system (6E would be fine), and would welcome any input on viable alternatives.

Appreciate it - as I had some Deco's already and was happy with the stability of the old ones (just not speed), I went ahead and ordered some BE65s as they were \~25% off. I can always add one of my pre-existing Deco's from before if I need to extend the mesh anywhere in the apartment too. My parents do have the nest wifi system as well which they seem to be pretty happy with, so if this alternative goes poorly that will likely be my next step. I'd went into the settings pretty deep with the Orbi to make sure the channel selections were correct, updating firmware, etc. but the intermittency of the performance was just too bad to keep them.

What's wrong with your current system exactly, what model even is it? As for a budget triband Wi-Fi seven system, I can recommend the Tp-Link Deco BE65, I'd say BE63 if you were in the US, apparently it's not available outside the US. Just be warned if you have a lot of devices and don't reboot the system a lot, it can become a bit unstable, at least that's what happens with our BE63.

If all you need is three SSI'Ds, a main one, a guest one, and an IOT one, that is definitely possible to do with most Deco systems. If you need more control than that, including control over the SSIDs that you can create besides blanket network isolation, you'll need something like Ubiquity, though an Asus mesh system could also work if you want that kind of form factor, you can get it with Ubiquity but you won't have nearly the same amount of options.

You can get a two pack, set one up where the current router is, and position one on the second floor slightly offset from where that first one is to allow the signal to propagate to it a little bit more efficiently. Or you can use wired backhaul if possible. Deco probably won't increase your speed, just your Wi-Fi coverage, so if you're getting good coverage on your second floor and first floor, then Deco won't help. Also, your issue most likely comes from the adapter, some of them just are not that amazing because they use small PCB mounted antennas. What speeds do you get downstairs with your phone right next to the router?