Deco XE75 – 2.4GHz band disappears randomly on one satellite using Ethernet Backhaul
Deco XE75 – 2.4GHz band disappears randomly on one satellite using Ethernet Backhaul
Hello,
I’m experiencing a recurring problem with my Deco XE75 system, and I would like TP-Link support to investigate it. I’ve also seen other users reporting similar issues recently.
System configuration
-
Main unit: Deco XE75 (EU) V1 – Firmware 1.4.3
-
Satellites:
• Deco XE75 – Dormitorio Principal (wired Ethernet backhaul to the main unit)
• Deco XE75 – Despacho (Wi-Fi backhaul to the Dormitorio node)
• Deco M4R – Cocina (Wi-Fi backhaul to the main unit)
Network topology
ONT/Router → XE75 (Salón – Main)
↳ XE75 (Dormitorio – Wired backhaul)
↳ XE75 (Despacho – Wi-Fi backhaul to Dormitorio)
↳ M4R (Cocina – Wi-Fi backhaul)
Problem
The 2.4 GHz band randomly stops working ONLY on the Deco XE75 in the master bedroom, even though that unit is connected by a stable Ethernet backhaul.
Symptoms
-
All 2.4 GHz devices near that node disconnect.
-
The Deco continues to appear online in the app, with no warnings.
-
5 GHz and 6 GHz continue working normally on that satellite.
-
The other XE75 units and the M4R work without issues.
-
The issue is only solved by rebooting the affected XE75, but it eventually returns.
Additional details
-
The system was completely stable before. The issue started recently.
-
The Ethernet cable is factory-made and verified as good.
-
Wi-Fi interference scan shows "Perfect".
-
The issue happens even with 6 GHz disabled.
-
Fast Roaming and Beamforming were tested OFF, but the problem continued.
-
The problem never affects the other XE75 units.
-
The M4R is unrelated.
Troubleshooting already performed
-
Full Deco system reboot ✔️
-
Rebooting only the affected XE75 ✔️
-
Disabled 6 GHz ✔️
-
Disabled Fast Roaming ✔️
-
Disabled Beamforming ✔️
-
Channel width changed ✔️
-
Ethernet backhaul verified ✔️
Request
Could TP-Link engineering please review whether Firmware 1.4.3 has a bug affecting the 2.4 GHz radio in XE75 satellites, even when they use Ethernet backhaul?
I can provide logs, screenshots, or run any diagnostic tests if needed.
Thank you.
- Copy Link
- Subscribe
- Bookmark
- Report Inappropriate Content
@AbreahamMG Hmmm so have u tried to turn ON IoT Network and then connect all your devices to IoT Network. Are you facing issue on IoT Network or Main WiFi ?
- Copy Link
- Report Inappropriate Content
Hi! Yes, I already tested that at the very beginning and the IoT network has been enabled since then. Right now all IoT devices use the dedicated 2.4 GHz IoT network, while my main devices use 5 GHz, and I also have a separate 6 GHz SSID.
The issue is the same whether I use the IoT network or not. When the problem appears, the Bedroom XE75 simply stops allowing any 2.4 GHz connections. So unfortunately, the IoT network itself doesn’t change the behavior in this case.
Thanks for your help!
- Copy Link
- Report Inappropriate Content
- Copy Link
- Report Inappropriate Content
@THE-BOSS619 Hi, sorry for the late reply.
The beta firmware I tested was provided directly by @David-TP from TP-Link support during the troubleshooting of this issue.
I recommend opening a support ticket so TP-Link can analyze your case and provide the appropriate firmware if needed, since these beta versions are usually distributed on a case-by-case basis.
In my case, the issue appeared once again after some time but then disappeared. Since then, I have reduced the number of IoT devices using the 2.4 GHz network, and the system has been stable so far.
I’m still monitoring the situation, and if the problem shows up again, I’ll collect the requested data and share the results with TP-Link support.
Hope this helps.
- Copy Link
- Report Inappropriate Content
Information
Helpful: 2
Views: 982
Replies: 14
Voters 1
