Deco Coverage in 500 Guz House
Hey TP-LINK !!
I have currently (6) Deco M4 units at home and all are using on higher transmit powers but because of that my client devices could'nt switch to nearest Deco unit. So how much transmit power will be suitable for me on both floors. Here is my heatmap. 👇


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@ARGamingPK1 What do you mean by "higher transmit powers"? The internet speed or something else?
Did you try connection preference?
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Hi, nice to see you again.
Thanks a lot for your feedback regarding the WiFi coverage indicated in the heatmap.
I understand your potential concern about the transmit power potentially affecting client roaming. Here is a more detailed explanation based on your points:
Regarding the Feature Request:
The request to adjust the WiFi transmit power has been previously forwarded to our engineering team for evaluation. This is a complex consideration in a Mesh system compared with a single traditional Wi-Fi router, as it involves whether adjustments should apply system-wide or per node, and how such changes might impact overall Mesh performance and stability. The proposal is still under review, and I haven't received a conclusive update at this time.
Accuracy of the Heatmap on Deco M4:
Please note that the Deco M4's firmware does not fully support the Heatmap feature with real-time data calibration. The signal strength (RSSI) shown is an estimation and does not dynamically account for actual signal attenuation through walls, floors, or other obstacles. Therefore, the heatmap may not fully reflect real-world conditions.
Factors Influencing Client Roaming:---Why my clients don't roam/connect to the nearest Deco node?
While transmit power can influence coverage, client roaming decisions depend on multiple factors:
- Signal strength received by the client device
- Connection speed and quality- during the Mesh networks, the main Deco usually offers a higher speed, while the network speed on satellite Deco units varies with distance and Mesh Backhaul types.
- Support for roaming protocols (e.g., 802.11k/v/r) on both the Deco system and the client device
Simply reducing transmit power may not ensure that a "sticky" client connects to the nearest Deco, as the client device itself plays a significant role in the roaming process.
Thank you very much.
Best regards.
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@David-TP ThankYou 💓
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