Username input field missing after firmware update

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Username input field missing after firmware update

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Username input field missing after firmware update
Username input field missing after firmware update
2022-06-02 15:41:36 - last edited 2022-06-02 18:37:57
Tags: #Firmware Update #Control Panel
Model: TL-WR840N  
Hardware Version: V6
Firmware Version: TL-WR840N(EU)_V6.2_220120

Hi,

 

After upgrading the firmware, the login page is missing the username field. I tried to downgrade it to the previous version (i.e. TL-WR840N(EU)_V6.2_201124) but the issue still persists.

 

Resetting the device does not seem to have fixed the issue, either, though having looked at the source code of the page, I can see that this "nd" class in the CSS code is making the username element hide (see screenshot below). That said, even when I remove that class manually and the missing input reappears, it still returns "username/password failed" after I enter my credentials.

 

Any advice is appreciated.

 

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1 Accepted Solution
Re:Username input field missing after firmware update-Solution
2022-06-02 16:25:42 - last edited 2022-06-02 18:37:57

  @Webvand 

 

On TP-Link's firmware download page the following release note can be found:

 

TL-WR840N(EU)_V6.2_20070

Download
Published Date: 2020-09-08 Language: English File Size: 4.53 MB

Modifications and Bug Fixes
1. Improved connection stablility.
2. Optimized the security and change the login mode.
3. Fixed some security vulnerabilities.

Notes:
For TL-WR840N EU V6.20.

 

My interpretation of this is that from version 200709 onwards TP-Link changed the login mode from the old style username+password login to the newer password-only login that most TP-Link router's have now.

So you will probably need a yet older version of the TL-WR840N V6.20 firmware to get back to the old style login.

 

By the way, are you certain that you router originally was indeed running the V6.2 version of the firmware and not maybe the V6 version?

 

 

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Re:Username input field missing after firmware update-Solution
2022-06-02 16:25:42 - last edited 2022-06-02 18:37:57

  @Webvand 

 

On TP-Link's firmware download page the following release note can be found:

 

TL-WR840N(EU)_V6.2_20070

Download
Published Date: 2020-09-08 Language: English File Size: 4.53 MB

Modifications and Bug Fixes
1. Improved connection stablility.
2. Optimized the security and change the login mode.
3. Fixed some security vulnerabilities.

Notes:
For TL-WR840N EU V6.20.

 

My interpretation of this is that from version 200709 onwards TP-Link changed the login mode from the old style username+password login to the newer password-only login that most TP-Link router's have now.

So you will probably need a yet older version of the TL-WR840N V6.20 firmware to get back to the old style login.

 

By the way, are you certain that you router originally was indeed running the V6.2 version of the firmware and not maybe the V6 version?

 

 

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Re:Username input field missing after firmware update
2022-06-02 17:26:10

  @woozle Thanks! I overlooked that point and did not know that there is a password-only login implementation in newer versions. And correct, a yet older version would be needed here, I assume (which is not available on the website)
And with regard to your last question, it was (and still is, after the update) showing v6 in the admin area (screenshot attached). But the label on the back of the device reads Ver:6.20. Is there something I should avoid here?

 

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Re:Username input field missing after firmware update
2022-06-02 17:43:38 - last edited 2022-06-02 17:59:33

  @Webvand 

 

If the label on the router reads Ver: 6.20, then the firmware versions that have "V6.2" in their name are the correct ones.

 

 

P.S. The regional TP-Link firmware download websites are sometimes not in sync and one site may show newer versions, while another may show older versions.

In this case that might be a good thing. smiley

https://www.tp-link.com/baltic/support/download/tl-wr840n/#Firmware

 

 

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