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2.4GHz Wi-Fi not working after 1.4.1 update

2.4GHz Wi-Fi not working after 1.4.1 update

2.4GHz Wi-Fi not working after 1.4.1 update
2.4GHz Wi-Fi not working after 1.4.1 update
Tuesday
Tags: #Firmware Update #Network Connectivity
Model: Archer AX55  
Hardware Version: V1
Firmware Version: 1.4.1 Build 20250821 rel.70686(4555)

 

Hello,

My Archer AX55(EU) V1 is currently running firmware 1.4.1 Build 20250821.
After this update, the 2.4GHz Wi-Fi completely stopped working with older devices (IoT cameras and Android phones that only support 2.4GHz).

The devices can connect to the 2.4GHz network and show “connected”, but there is no internet access or data transfer at all.

 

When I try to downgrade to version 1.3.5, the web interface returns “Upload Error”, which means the firmware is now locked against downgrade.

 

Please provide a signed firmware file (for example Archer AX55(EU)_V1_1.3.5 Build 20240327) or an official downgrade method, so I can manually restore compatibility with my 2.4GHz-only devices.

I do not need the latest OneMesh or EasyMesh features, I just want my 2.4GHz Wi-Fi working again.

 

Thank you for your assistance.

 

 

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#1
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6 Reply
Re:2.4GHz Wi-Fi not working after 1.4.1 update
Tuesday - last edited Tuesday

Update / Clarification: I’ve already tried multiple factory resets, disabled Smart Connect, and manually changed 2.4GHz channels (1 / 6 / 11) as well as bandwidth settings (20 MHz / 40 MHz) — the issue still persists.

 

In addition, IoT devices (such as smart plugs, cameras) either fail to connect or disconnect and go offline after just a few seconds.

 

The 2.4GHz SSID is visible and devices connect successfully, but no data passes through (no internet, no ping, no local access). This is not the same issue reported in other threads. It looks like a firmware-level incompatibility introduced in 1.4.1 Build 20250821, possibly related to EasyMesh R3 / DPP. Please escalate this to the firmware engineering team or share a signed rollback (1.3.x) for testing.

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#2
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Re:2.4GHz Wi-Fi not working after 1.4.1 update
Tuesday

  @Alex_BCS 

Update: - can not post because something about a link (?!) I will post a screenshot 🙂 

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#3
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Re:2.4GHz Wi-Fi not working after 1.4.1 update
Yesterday

Hello @Alex_BCS ,

Thanks for contacting our community.

 

May I know the models of your cameras and Android phones? 

 

Plesae try to change the wireless mode of 2.4Ghz to 802.11b/g/n mixed.

 

We have a beta firmware, you can also install it for a try: Archer AX55_V1_1.3.5 Build 20250918(Beta Firmware)

 

If it still doesn't help, please help collect the system log and backup file. 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.    

 

 

Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Pre-release Firmware for Archer AX80 Supports EasyMesh in AP Mode, DoH/DoT, ECO Mode, and More △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △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
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#4
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Re:2.4GHz Wi-Fi not working after 1.4.1 update
18 hours ago

  @Joseph-TP 

Beta 1.3.5 no result. Also, downgrade from 1.3.5 to 1.3.3 no result.

Now I am on : Firmware Version

1.3.3 Build 20240628 rel.37017(4555)

Hardware Version: Archer AX55 v1.0

 

Answers:

1. The 2.4 GHz problem is on my ALL devices, NEW or OLD, Samsung, Lenovo, Xiaomi MiTV Stick on 2.4 GHz etc... the problem is also on 2.4 GHz USB WIFI adapters used on Desktop PC.

 

If I disable Smart Connect and Disable 5GHz WiFi, all my devices (the last one, Samsung A52, Android 14, Lenovo Tab P12, Android 15) CAN NOT Connect ... Connecting... Saved... or when one of them get the connection, the Okla test speed is in kilobytes... and, short time after, wifi disconnect  frown

 

2. Tried many times wireless mode of 2.4Ghz 802.11b/g/n mixed, also channel 1, 6 or 11, Band 20, 40, 20/40.

NO RESULT after Reboot. frown

 

3. As I said, ax55v1-up-us-ver1-3-5-P1[20250918-rel29118]-2048_beta NOT WORKING. frown Also, downgraded to 1.3.3, not working.

 

I get this router in September 2024, worked like a charm. My guess is I must go back to a firmware previous September 2024.

 

THANK YOU FOR SUPPORT.

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#5
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Re:2.4GHz Wi-Fi not working after 1.4.1 update
15 hours ago

Hello @Alex_BCS ,

Thanks for getting back to me.

 

Have you been able to enable the 2.4 GHz guest network?

Of course, you can also check to see if the 2.4 GHz radio can be restored after the downgrade.

 

It's also possible that there's an issue with the 2.4 GHz radio. In that case, please feel free to contact local support for help.

Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Pre-release Firmware for Archer AX80 Supports EasyMesh in AP Mode, DoH/DoT, ECO Mode, and More △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △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
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#6
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Re:2.4GHz Wi-Fi not working after 1.4.1 update
13 hours ago

  @Joseph-TP yes, guest and iot 2.4 GHz wifi can be enabled but same problem.

Local support said my case is now on an engineer from international support.

He tell me to do simple stuff, like changing the channel etc... one thing per day, it will take years to solve this.crying

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#7
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