Archer 5400X Failed certificate

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Archer 5400X Failed certificate

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Archer 5400X Failed certificate
Archer 5400X Failed certificate
2020-08-21 23:49:39 - last edited 2020-08-22 17:27:34
Model: Archer C5400X  
Hardware Version: V1
Firmware Version: 1.1.2 Build 20191223 rel.73956(5553)

Lately I started to get SEC_ERROR_INADEQUATE_KEY_USAGE

Now its impossible to skip since Firefox no longer allows you to ignore the certificate.

Its been 8 months since last update to this router.

How can this issue be fixed?

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1 Accepted Solution
Re:Archer 5400X Failed certificate-Solution
2020-08-22 13:53:17 - last edited 2020-08-22 17:27:34

@CesarinPillin 

 

Have 'Googled' the error?

 

I see a lot of complaints, and in some cases it was not strictly Firefox at fault?

 

Have you tried another browser? If it works, it isn't the router?

 

Windows even put out for V8.1 a fix for this if using MS Family Safety recently (https://support.microsoft.com/en-us/help/2981655/certain-https-sites-cannot-be-opened-in-firefox-after-you-install-upda)?

 

In any case, I think more info would help? Your OS, what site, and if it fail with all browsers you tried?

 

For instance, in this link, https://forum.netgate.com/topic/146384/sec_error_inadequate_key_usage-when-accessing-the-webgui-from-firefox, there is a statement that Chrome and Edge work.

 

===========

Hi everyone, I experienced the same thing today, when trying to access the webConfiguration, and I suspect this is related to a new Firefox release.
I have the same error, which only occurs on Firefox (Edge and Chrome work), in version 69.0.

=============

 

That would rule out the router.

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3 Reply
Re:Archer 5400X Failed certificate-Solution
2020-08-22 13:53:17 - last edited 2020-08-22 17:27:34

@CesarinPillin 

 

Have 'Googled' the error?

 

I see a lot of complaints, and in some cases it was not strictly Firefox at fault?

 

Have you tried another browser? If it works, it isn't the router?

 

Windows even put out for V8.1 a fix for this if using MS Family Safety recently (https://support.microsoft.com/en-us/help/2981655/certain-https-sites-cannot-be-opened-in-firefox-after-you-install-upda)?

 

In any case, I think more info would help? Your OS, what site, and if it fail with all browsers you tried?

 

For instance, in this link, https://forum.netgate.com/topic/146384/sec_error_inadequate_key_usage-when-accessing-the-webgui-from-firefox, there is a statement that Chrome and Edge work.

 

===========

Hi everyone, I experienced the same thing today, when trying to access the webConfiguration, and I suspect this is related to a new Firefox release.
I have the same error, which only occurs on Firefox (Edge and Chrome work), in version 69.0.

=============

 

That would rule out the router.

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Re:Archer 5400X Failed certificate
2020-08-22 17:21:06

@IrvSp 

Yes I have googled. found way too many hits some not related to what I'm experiencing.

 

And no, Google Chrome Still ALLOWS you to ignore the error and bypass the warning (yes it also gives the certificate error).

Firefox just became more strict regarding wrong or failed certs.

 

And no, I'm, not using Windows 8. I'm using Windows 10 up to date.

 

"What site": as I mentioned before, its my 5400X admin console that errors out.

 

" For instance, in this link, https://forum.netgate.com/topic/146384/sec_error_inadequate_key_usage-when-accessing-the-webgui-from-firefox, there is a statement that Chrome and Edge work. "

I do not see how this is relevant. Its obvious that a lot of routers use self signed certificates or certs that already expired.

Also all browsers get the warning. Its just that FIREFOX no longer you to bypass these.

 

The only thing that seems relevant (which I will be doing asap) is cleaning the certificates in case of corruption.

 

 

Thx IRVSP!

 

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Re:Archer 5400X Failed certificate
2020-08-22 17:28:21
Hello everyone! Deleting the certificate database of Firefox solved the issue. The certificate now appears correctly as "SELF SIGNED". And was allowed to bypass in Firefox. Thanks IrvSP.
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