Tp-Link BE400 - updating to version 1.1.1 Build 20250731 rel.29662 worse wifi signal

Tp-Link BE400 - updating to version 1.1.1 Build 20250731 rel.29662 worse wifi signal

Tp-Link BE400 - updating to version 1.1.1 Build 20250731 rel.29662 worse wifi signal
Tp-Link BE400 - updating to version 1.1.1 Build 20250731 rel.29662 worse wifi signal
2025-09-19 21:24:36
Model: Archer BE400  
Hardware Version: V1
Firmware Version: 1.1.1 Build 20250731 rel.29662

After updating to version 1.1.1 Build 20250731 rel.29662, my BE400 started dropping out in the furthest room of the house. I measured it with the WIFIman app, and the 5db drop disappeared, causing it to drop TV streams on my Samsung Galaxy S24 and S24 Ultra. The settings were the same as before, but as a test, I rolled back to the previous version 1.1.0 Build 20250710 rel.14914, and to my surprise, the range returned to its previous level. I left it at that... but how is it possible that an update worsens the router's range?

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Re:Tp-Link BE400 - updating to version 1.1.1 Build 20250731 rel.29662 worse wifi signal
2025-09-22 06:10:00

Hello @MarcinB ,

We would like to escalate your case to the support engineers, and they will follow up on it. If you are willing to conduct further analysis, please check your inbox and respond.    

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △New Firmware Update for Archer BE260/Archer BE400 to Support VPN Merge, New ECO Mode, and More △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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