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TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update

TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update

TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Thursday - last edited Friday
Tags: #Network Connectivity #firmware
Model: Archer BE6500  
Hardware Version: V1
Firmware Version: 1.2.3 Build 20260107 rel.48335(5553)

I just started having issues connecting to my 2.4 Ghz network and did some extensive troubleshooting. Here are my observations:

 

  • 2.4 GHz SSID disappears from all devices simultaneously (e.g., my phone, kids' tablet, and other devices all have the network vanish as available WiFi networks to connect to).
  • Router GUI still shows 2.4 GHz enabled.
  • Enabling 5 GHz immediately stabilizes 2.4 GHz. This is the only workaround I could find and something I don't find acceptable because I don't want to have the 5 GHz network permanently enabled. 
  • Manual channel selection did not help.
  • WPA2-only did not help.
  • Disabling Wi-Fi 7 did not help.
  • Devices intermittently report incorrect password despite correct password.

 

I know firmware version 1.2.3 Build 20260107 was released on 2026-05-13 and I have auto-firmware update turned on. However, I don't know when the firmware update was applied to my router between the firmware release date of 2026-05-13 and today, 2026-05-28. All I know is that the issues with the 2.4 Ghz network started today and I didn't manually change any router configuration or introduce any new devices to my home network.

 

Again, the 5 Ghz network works fine and the 2.4 Ghz network works normally only with the 5 Ghz network enabled. So is the 2.4 GHz radio crashing/resetting repeatedly, failing DFS/coexistence logic, or hitting a firmware bug? Did the newest firmware introduced a bug in the radio-management layer affecting standalone 2.4 GHz operation, transitions when only one band is enabled, or beacon/auth handling on the 2.4 GHz chipset? Does the "incorrect password" message I'm getting – despite having the right password for the network on my phone – mean the AP disappears mid-authentication, the handshake crashes, or the radio resets during WPA negotiation?

 

I don't know, but I'm willing to find out on behalf of other people who seem to be having similar issues as seen in this forum post: TP-Link BE6500 Dual-Band WiFi 7 Router Firmware Fix?

 

This is especially frustrating because the new firmware cannot be downgraded to the previous version.I haven't done a factory reset yet because that's a pain in the butt. But I'm willing to do it for testing purposes if asked by a Support person.

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5 Reply
Re:TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Friday

Hello @Buckyzas97 ,

Welcome to our community.

 

May I know whether your router is in Access Point mode? If yes, please change it to wireless router mode. Then, please enable the EasyMesh feature: Go to Advanced > EasyMesh, and enable EasyMesh on the router.

Welcome to Our Community! Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
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#2
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Re:TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Friday

@Joseph-TP 

 

My router was already in wireless router mode. Toggling on the EasyMesh setting has no impact on my issue.

 

Would you like to look at log or a config / backup file to see all the current settings? I'd like to avoid a long back and forth if possible.

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Re:TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Friday - last edited Sunday

  @Buckyzas97 

 

A similar issue but with 5GHz band only enabled has been observed here and here. This could be an issue with the FW release.

In another thread a newer FW release has been identified as Archer BE400_V1_1.2.4 Build 20260210 but is nowhere to be found (probably a beta version).

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Re:TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Monday

Hello @Buckyzas97 ,

Thanks for sharing the test results.

 

Yes, the relevant technical departments have preliminarily identified the cause of this anomaly. A firmware update to fix it will likely be released soon.
However, the current temporary workaround has not resolved the unexpected behavior you are experiencing. We recommend sending an email to forumsupport.usa@tp-link.com  with the following information:

Subject: [Forum Escalation][ID 865252] Archer BE400/BE6500 2.4 GHz Network Issues after firmware 1.2.3 Build 20260107 Update

Forum Nickname: Buckyzas97 

Thread URL: https://community.tp-link.com/en/home/forum/topic/865252

Model&Version: Archer BE6500-v1-1.2.3 

Description: 

[Please briefly add any anomalies you encountered, as well as any details you did not have time to mention.]

 

Any Other Relevant Information: Please attach the configuration file and system log on your router for further investigation.

How to view and save System Log of TP-Link wireless router

How to create and restore from a backup file on your TP-Link Router

 

Once sent, a ticket will be created in our support system, and a team member will follow up to gather more information or troubleshoot the case.

Welcome to Our Community! Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
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#5
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Re:TP-Link BE6500 2.4 Ghz Network Issues after firmware 1.2.3 Build 20260107 Update
Yesterday

@Joseph-TP – You might want to re-read my initial post. I do have a workaround and I found it myself: enabling the other router radio.

 

I'm glad that you've confirmed this is a firmware issue and a fix is on the way. I'll just wait for that to happen.

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Views: 249

Replies: 5

Tags

Network Connectivity
firmware