Deco M9 Plus "invalid Wireless Password"

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Deco M9 Plus "invalid Wireless Password"

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Burkeyj

2020-08-31 04:00:24 - last edited 2020-09-02 06:49:43

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Deco M9 Plus "invalid Wireless Password"

2020-08-31 04:00:24 - last edited 2020-09-02 06:49:43

Model: AC50

Hardware Version: V1

Firmware Version: 1.2.12 Build 20191014 Rel. 42025

Hello,

Just purchased and installed the Deco M9 Plus 3 pack in my house. All hard wired devices are working find. The wireless network seems to be a finiky. New wireless devides have to try several times before they connect and recive the error message "Invalid Wireless Password". My cell, which has the TP-Link app on it, drops wireless occaionaly and gets the same error several times before reconnecting. The SSID is simple and my password is very simple. Have tried all the basics, reboots, power cycles, etc with no change. Has anyone had similar issues, my next step is to reset the system and set it up again trying a differnet network name and password.

1 Accepted Solution

David-TP

2020-09-02 06:49:36 - last edited 2020-09-02 06:49:43

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Re:Deco M9 Plus "invalid Wireless Password"-Solution

2020-09-02 06:49:36 - last edited 2020-09-02 06:49:43

@Burkeyj

Hi,

For the disconnect issues, we suggest you update the firmware of your Deco M9 system first:
1. We released a new firmware for the Deco M9 Plus V2 months ago, and below is the download link, which is marked Deco M9 Plus(EU)_V2_200324, or Deco M9 Plus(US) _V2_200324 on the local official website:
https://www.tp-link.com/support/download/deco-m9-plus/#Firmware

2. This new firmware can ONLY be updated via the Upgrade Tool, you cannot update it via web nor on the Deco app. Upgrade Tool can be downloaded from the below link:
https://www.tp-link.com/support/download/deco-m9-plus/#Utility

3. If you cannot log into the Upgrade Tool with your TP-Link ID and password, please try to forget your password on your Deco app and login again to confirm it is correct, do remember that both the ID and password are case-sensitive:
What if I forget the password of my TP-Link ID?
Note: If you still fail to update or login, it is suggested to try different computers.

Thanks a lot.

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