Now I am using 3 D link R15 mesh router. 1 of them I set up as router. 2 of the mesh as extender.
I stay in a 3 storey house when I use the mesh, every corner of my house I get full bar but my internet speed dropped a lot.
Do I need to add more mesh to gain internet speed? I'm using unifi 100mbps. Please advice.

You purchased the incorrect MESH system; the R15 is a dual-band model. It would have been wiser to invest in a tri-band MESH system for better performance. Simply acquiring more MESH routers will not address the issue.

You now have two alternatives:

1. Connect all R15 units using Ethernet cables.
2. Discard the existing R15 routers and upgrade to a tri-band MESH system.

In a dual-band MESH system, the 5GHz band is utilized for both inter-router communication and connecting with mobile devices.
Conversely, a tri-band MESH system features an additional 5GHz band exclusively reserved for inter-router communication, enhancing overall performance.

This post has been edited by sHawTY: Feb 22 2024, 04:18 PM

Any tri band MESH system intro?

The cheapest would be TP-Link Deco X75

Cheaper if you're willing to downgrade to Wi-Fi 5 (Wi-Fi AC)

Pay more for Triband mesh router/deco or just a simple fix which is connect all your R15 mesh router via a ethernet lan cable.

with single device, does tri band range coverage better vs dual?
or speed only?

Triband means there's a dedicated 5Ghz[band 2] reserve just for MESH to connect within each other, this band2 does not share with other device in your network so technically it will improve the speed but not coverage.

What do you mean by "Single Device"?

Single laptop or single MESH router?

single router , eg tplink ax73 dual , vs triband.

interm of range coverage same?

No effect
Tri-band single router will only help if you have lots of devices at home

Want to tumpang thread.

Im currently using TPLINK Deco X50-5G due to UNIFI not available in my area but once it is available, is it better to use the default wifi 6 router given by UNIFI or this deco?

Can you advise?

Regarding Mesh Question, let's not use Triband anymore because we have WIFI 6E & 7 now, will be confusing in later on.

First, TP Link have two Mesh solution, OneMesh™ and Deco Mesh.
OneMesh device and Deco Mesh device not compatible with each other.

For any Mesh solution, inclusive other brand like Asus, etc. You want them to have dedicated channel for internal communication between Mesh devices, you can either:
a.) Use ethernet cable
b.) Use dedicated wifi band reserved just for Mesh.

As for network topology, you should always is Star topology, don't use Chain topology.
For example if you have three-story house. You want to have main Deco that serve as Router deploy in second-story, while the rest connected to main Deco in star topology.
If you main Deco place at first / third story, then the further Deco need to chain via middle Deco to reach main Deco, this will congested the traffic.

As for whether to use default router setup by ISP or your own Deco, I would always use Deco because the Deco itself can operate as Router mode.

This post has been edited by yeo1992cc: Mar 24 2024, 11:03 AM

Nah, you should continue using your Dexo X50-5G(since it supported PPPOE dial up) once unifi is available, default wifi 6 router from unifi are known as crap.

So if i wanted to add on Mesh, i need to buy my own deco mesh right?

just go for wifi 6e or 7
better that way

Yes you may add other deco product.

Im using a pair of M9plus now, is it wise to upgrade it to a pair of deco x60 ax5400?

From best to worst in Mesh system (connecting from main to node):

1) LAN Cable / Wired backhaul
2) Wireless through Third band which also known as Tri-Band (Dedicated 5ghz[2] or 6ghz on WiFi 6E/7 models)
3) Wireless through Second band - Dual-Band (using 5ghz[1] as backhaul) and must place in open or direct area for best result

Basically Node (wireless backhaul here as example) is for you to expand your Wi-Fi connection.

Even you see it's full bar WiFi signal in the area of Node2 doesnt mean the internet strength of that node is full speed cause the jump between Main to Node through wireless already cut down the speed (but not wifibar cause you connecting to Node2 directly)