Official Release Deco M9 Plus 1.6.4
Current Release
For Deco M9 Plus(V1/V2/2.2)
Deco M9 Plus_1.6.4_Build_20240718
Release Note:
1. Improve the device stability;
2. Enhance the system security
---------------------------------------------------------------------------------------------------
History Release
For Deco M9 Plus(V1/V2/2.2)
Deco M9 Plus_1.6.3_Build_20231225
Release Note:
1. Fix the potential security vulnerability and its related problem.
2. Improve system stability and security.
For Deco M9 Plus(V1/V2/2.2)
Deco M9 Plus_1.6.2_Build_20230906
Release Note:
1.Fixed the bug that parental control doesn't take effect.
For Deco M9 Plus(V1/V2/2.2)
Deco M9 Plus_1.6.1_Build 20230403
Release Note:
1. Added Reboot Schedule for every day/week under Deco App > More > Reboot Schedule.
2. Added support for customizing Satellite Deco Signal Source under Deco App > Internet > Select the Satellite Deco > Signal Source.
3. Added support for customizing clients Connection Preference under Deco App > CLIENTS > Select the client > Click the gear icon on the right-up corner > Connection Preference.
4. Added No-IP and DynDNS to the DDNS settings under Deco App > More > Advanced > DDNS.
5. Added Smart DHCP on/off switch in Access Point mode under Deco App > More > Advanced > Smart DHCP.
6. Added a prompt notification when the Ethernet link rate goes down to 100Mbps.
7. Added schedule and bandwidth limit to guest network under Deco App > More > Wi-Fi > Guest Network.
8. Fixed the bug that the built-in speedtest has low speed test results.
Notes:
1. This firmware downgrade could be done via firmware recovery-How to use firmware recovery.
2. Please update your Deco APP to the latest version for the new features.
3. If there are non-1.6.0 models in the Mesh network, you may miss some new features but this feature will be supported via firmware update in the future.
4. You may miss some new features when Deco is set to Access Point mode.
Related Articles:
- Copy Link
- Subscribe
- Bookmark
- Report Inappropriate Content
Hi, I do apologize for the delay.
Could you please send an email to support.forum@tp-link.com with the subject [Forum ID 574954] Deco M9 Plus 1.6.1 directly with some details of your current issue after updating to 1.6.1?
Thank you very much.
Best regards.
- Copy Link
- Report Inappropriate Content
- Copy Link
- Report Inappropriate Content
Hi :)
Installed Deco 1.6.1 on my Deco M9 Plus today. I have 3 decos. Instantly after upgrade was finished, the internet was dropped out. I restarted My decos and it came backup up again, but after a short while (som minutes), it dropped back out, Internet was fine connected to my modem. Deco was looking fine with ipadresses and all, but all of them had a red light and no connection. Local wifi worked fine.
Before I started to initiate any downgrade possibilities, I tried to disable IPv6. All network went intantly up again and been solid since.
Hope this may help if someone experiences this same problem. I see it's been a while since this upgrade was launched, but i didn't find anything regarding IPv6 as a solution anywhere.
Br
Perkar
- Copy Link
- Report Inappropriate Content
Hi,
Here the same issues. 4 units M9+v2 running 1.6.1. Especially Android phone and Google nest can't connect anymore or on-off. All iPhones worked more or less (some apps and mail still refresh very slowly) after renewing WiFi connection.
tried everything! Reinstall everything. Gives me headaches 🤯
will go back to 1.5.6....
worst experience ever with TP !
- Copy Link
- Report Inappropriate Content
i had the update on my m9v2 but is was a mess apps not working streaming service not working made a ticket finaly back to 1.5.6 and is working now waiting for te he fix op 1.6.1
- Copy Link
- Report Inappropriate Content
- Copy Link
- Report Inappropriate Content
- Copy Link
- Report Inappropriate Content
Hi, welcome to the community.
Could you please send me some pictures of the network map and the signal strength on the Decos, such as:

It is also suggested to refer to the following advice:(case 3)
Fix unstable connection when connected to the Deco network
May I know the model number of the clients that dropped out frequently?
Wait for your reply.
Best regards.
- Copy Link
- Report Inappropriate Content
Hi, Thank you for the feedback.
As for the disconnection issue, could you please refer to this link to help me check which case is quite like yours? I think it might be the third one and if yes, you could refer to the suggestions of turning off fast roaming and beamforming here to see whether it helped.
Fix unstable connection when connected to the Deco network
As for the speed issue, can I have more details about it?
May I know how many online clients you have?
Wait for your reply.
Best regards.
- Copy Link
- Report Inappropriate Content
Thanks for info! /jannek999
- Copy Link
- Report Inappropriate Content
Information
Helpful: 8
Views: 142036
Replies: 436


