
TP-Link - Deco P9
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Based on 1 year's data from Feb 25, 2026 How it works
Liked most:
44
14
"I have deco P9 which uses the power line within the house,got them in about 2020 ,they need rebooting every 6 months absolutely solid."
"Actually better than a range extender, as Mesh systems are designed from the ground up to work with each other in the system. ... But it's half ass "patched up" jerky jerky mesh was no match to a Deco. Deco was snappier, more reliable, and longer range."
"I myself have a deco and we have four modules through a long rambly ranch house and we have nearly 300 MB per second everywhere because we have about 1 GB per second fiber to the house."
13
0
"Unbeatable set up for the price. Can’t compete with it if you’re living in and old house with thick walls where even standard mesh struggles. ... Been a godsend in our big old house where even mesh networks struggle with the thick walls."
"TPLink Decco is a damn good mesh system and and much cheaper. ... $169 for my 3 Decco System."
"for your building you could probably do it for under $1,000 easily."
13
0
"I have deco P9 which uses the power line within the house,got them in about 2020 ,they need rebooting every 6 months absolutely solid."
"tplink just works ... I follow up with my customers each month and they say everything is much better and working great. I only hardwire nodes, never wireless, and I buy the wifi6e versions- I’m not saying tplink is better than Unifi, just saying a hardwired network and wifi where you need it is the recipe."
"TP Link Deco P9. Mesh wifi with additional powerline backhaul. Best of both worlds. ... combines powerline with mesh wifi. Achieved a very robust and quick network in my old stone built property."
4
1
"TP Link Deco P9. Mesh wifi with additional powerline backhaul. Best of both worlds. ... combines powerline with mesh wifi. Achieved a very robust and quick network in my old stone built property."
"Unbeatable set up for the price. Can’t compete with it if you’re living in and old house with thick walls where even standard mesh struggles. ... Been a godsend in our big old house where even mesh networks struggle with the thick walls."
"I've got two deco units due to my previous apartment having solid brick walls. They've been amazing for my use case."
13
1
"Just a no fuss system. ... Plug in, download the app, set ssid and don't worry about it anymore for years. ... Mine has been stable and working for years."
"It’s very user friendly, easy maintenance"
"Deco is so much faster setup"
Disliked most:
4
2
"throughput just randomly drops to 1kbps"
"It's not great / weaker then the tp link deco meshing setup i was using before. Lower connection speed and more frequent disconnects."
"performance worse than when I was just using a router"
1
10
"I have a deco, nothing but trouble. Read the tp link subreddit about dropped connections."
"throughput just randomly drops to 1kbps"
"switched to tplink deco's and after 1 year, there was latency and packet drops all over the place."
0
3
"rubbish app that won't let you change settings 9 times out of 10"
"TP Link Deco definitely requires an app and an account and although there is a web interface, it can't do much."
"has a dumbed-down admin interface with only basic config options"
0
2
"frequently fails to deliver advertised features or function reliably"
"The tplink’s I bought say they support mesh but once setup as a mesh they lose features. ... So the mesh isn’t worth using. ... The mesh setup is a half baked. You can’t use all the wifi features when setup as a mesh."
"Features they say they support are half supported."
Yes I used them for years. But then moved to the Deco P9 (mesh power line hybrid) and that's been running great for me ever since. I did briefly purchase the newer Deco PX50 mesh that has power line too but found it absolutely useless compared to the P9. So I returned it and have stuck with the P9.
TP Link Deco P9. Mesh wifi with additional powerline backhaul. Best of both worlds.
They do, but I’d look at the TP Link Deco P9 system if I were you, combines powerline with mesh wifi. Achieved a very robust and quick network in my old stone built property.
I have deco P9 which uses the power line within the house,got them in about 2020 ,they need rebooting every 6 months absolutely solid.they have option of ethernet so you can use the existing hard points. The app is very simple. You might need more access points especially in a bungalow or if your internal floors are concrete,more is best. If price was not an issue then id get ubiquity.
I liked the Deco P9 I had set up around my apartment. The roaming feature is nice and I got full coverage everywhere. I had to get rid of it because the routers and nodes were terrible for in-house streaming from Sunshine and PS5.
Completely agree. Unbeatable set up for the price. Can’t compete with it if you’re living in and old house with thick walls where even standard mesh struggles.
Highly recommend the Deco p9 set up. They create a mesh network but use powerline as a fallback to create the mesh network (or primary if you tweak the setttings). Been a godsend in our big old house where even mesh networks struggle with the thick walls. Had eero originally but would have needed like 6 devices to compete with what I’m doing now with 3 decos
I notice some people recommending mesh, which in SOME situations will solve your issue. However, if like me you have old house + thick stone/brick internal walls then you're screwed. You could go for the deco p9 which is a mesh/powerline hybrid however its not very fast. What I did to get round it is use g.hn (the latest gen of the powerline standard) powerline adapters plugged into WiFi 6 routers, all configured with the same WiFi ssid and password, working on different static channels so that I can wander through the house and my device just connects to the strongest signal. It's not perfect but it does work and I get high transfer rate throughout the house. In answer to your original question though, yes they really do work. Edited to add: if you've got fibre to the house plus thick stone walls then you should just go ahead and get the place networked with cat6 as powerline will never get you anywhere near the speeds you should be getting.
Will powerline work in your house? If so I'd get something like TPLink Decos with the powerline backhaul.
it's not, but the decos have it built in and will pick the best signal strength between wireless backhaul and powerline. In the OPs case wired of some kind will be the best option, first would be ethernet, second powerline (provided the wiring is good enough for it)
I have two apartments both are like faraday cages, I have Ubiquiti in one and Deco Powerlines in the other. I'm pretty impressed with the Decos for the prices
I used to use Deco (mix of P9 and M4). It's pretty cheap and very easy to set up, but doesn't give you much control over what it's doing. Wen a couple of my ageing P9's failed I switched to Unifi, which is probably a bit overpriced for what it is, but works well and was was pretty easy to set up. It can do way more than I need but is able to do things like specify the channel, which I couldn't do with Deco, meaning I can set it not to overlap with my Zigbee network. No experience of Eero. I went with the Unifi UDR7, which is a combined router (they call it gateway) and wifi access point. In hindsight I might have been better off with a separate gateway as the best place for it isn't always the best place for the access point, but an all in one device is a a good starting point. I then have one of their POE switches (Lite-8) so my other access points don't need their own power supplies which simplifies the installation nicely. I have it set up with 3 wifi networks, my main 5GHz network, a 2GHz only network for a few specific devices that don't like 5GHz (Ring doorbell, a couple of old wifi smart switches and a printer), and a separate guest network.
I’m currently running a TP Link mesh network with 3 nodes. The current system is a cheap TP Link Deco mesh (WiFi 5). I’m curious if the coverage from the Dream Router 7 would be superior to my current setup, or if I would need an extra ap. My current setup has trouble connecting to my WiFi ring doorbell and my car parked in the driveway on the other side of the house. I live in a 1700 sq ft, 2 story cape. I’m new to this so any pointers would be appreciated!
get mesh system - depending on your current DL speeds that you are paying for you may get away with a pre WIFI 6 system of 2 or 3 units... they go cheap on FB market place where people have upgraded to faster speeds We have TP deco on a 3 story townhouse... 1 on each floor - works well no dead spots like we had before and can plug in apple tv in the lounge to one via a wire... not a massive outlay tbf for good coverage if you are looking for less than 100MB down Look for DECO MESH on FB market place and you may get 3 units of pre WIFI 6 for less than 100 bux... it does enough for less than 100 down
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