How To Fix Invalid Certificate Error When Connecting To Linksys Wireless Routers
If you use Firefox browser when connecting to your
Linksys wireless router[Image: ir?t=homedecorat01-20&l=ur2&o=1] administration interface, more than likely you can't and have seen this warning message:
[Image: linksys-cert-problem1.jpg]
Consider yourself lucky if you do receive the same warning message, because it's an easy fix by:
- clicking the link at the bottom of the error message, Or you can add an exception…
- then click on the Add Exception button…
- [Image: linksys-cert-problem2.jpg]followed by clicking on the Get Certificate button (on the next screen) and clicking the Confirm Security Exception button at the bottom of the page.
The invalid certificate warning will not display the next time you connect to your router.
But for those of you out there (like me) that receives an error message similar to this…
192.168.1.1 uses an invalid security certificate.
The certificate is not trusted because it is self signed.
The certificate is only valid for <a id="cert_domain_link" title="Linksys">Linksys</a>
(Error code: sec_error_ca_cert_invalid)
…here's a possible fix to get things working again when connect to your wireless Linksys router.
On my system (and hopefully on yours) the reason why this error message occurs is because the existing Cisco Linksys certificate is corrupted. Here's how to fix that:
- In Firefox, click on Tools \ Options, select the Advanced tab, then select the Encryption tab.
- Next, click on View Certificates button.
[Image: linksys-cert-problem3.jpg]
- Make sure the Authorities tab is selected, and scroll down to you see the Linksys certificate under Cisco-Linksys, LLC.
- Now highlight and click the delete button.
[Image: linksys-cert-problem5.jpg]
- Select the Servers tab (next to Authorities tab), and look for the certificate shown in the following screen shot. Highlight and delete it.
[Image: linksys-cert-problem6.jpg]
Now, click
OK all the way back to Firefox, and reconnect to your router using
https://192.168.1.1
You will see the same Secure Connection Failed warning message shown at beginning of article. Follow the same steps for accepting the exception which will add a new Cisco Linksys certificate.
You will now be able to authenticate successfully and will no longer see any certificate error messages.
Unfortunately I have not been able to resolve the same issue if you use Internet Explorer 7. But fortunately it's a lot easier to bypass the warning by clicking on
Continue to this website (not recommended).
By doing so, IE 7 will let you authenticate to your
home wireless router easier than Firefox.
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Check OpenDNS
Now,
OpenDNS could be the culprit, but to be honest, I have a hard time envisioning exactly how that would happen. However, I would certainly see if it works without OpenDNS configured.
Change the DNS [Domain Name System]
DNS is an acronym for
Domain
Name
System, or occasionally Domain Name Service or Server.
DNS is the service that maps human-readable domain names – like “askleo.com” – to the actual numeric IP addresses – such as 67.225.235.59 – which identify the server on which the domain name resides.
(Click on the term for full definition.)
">DNS settings either on your router or a specific machine to use Google’s public DNS, your ISP [Internet Service Provider]
ISP is an acronym for
Internet
Service
Provider. (Not to be confused with IP, which is completely unrelated.) An ISP is the company providing your home or place of business its connection to the internet. They may also provide services such as email, web hosting, or more.
(Click on the term for full definition.)
">ISP, or any other set of DNS providers. (Be sure and flush your browser’s cache after changing DNS as well.) My guess is the problem won’t necessarily go away. In that case, it’s probably not an OpenDNS issue.
It could be malware
I hate to throw that out there, but some form of malware could be interfering with how you visit certain sites. If those sites are affected or use https, then the malware could be trying to steer you wrong. So, as always, make sure you scan with updated anti-virus
If the problem is on the server side…
If you’re seeing this across a family of sites or just one site, then it’s likely that it’s actually a problem on the server’s side.
The last point that I’ll throw out here is that the error message itself usually has a lot of important information that would help diagnose exactly what’s going on. If that’s the case, I’d strongly recommend that you include the entire text of the error that comes up when you have a problem accessing a secure site and there’s some kind of a certificate problem
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Installing a Certificate on Google Chrome for ReadyNAS OS 6
Introduction: The web browser is presenting a Certificate error when logging into the management web interface.
This article will display how to add the page as a Trusted site, and clear the certificate warning page.
Version of Chrome used, should not matter.
Objective: To show how to install a Certificate on Google Chrome, for ReadyNAS OS 6.
What is a Cert?
A security certificate is an assurance by an independent third party (e.g. VeriSign or Digi-Sign) of ownership of a website. A website's certificate identifies the web server and it enables the browser to establish a secure connection with the site. Here, when accessing the NAS web interface, you are not surfing the Internet, but you still get the Certificate untrusted message as shown below.
When you see the word
'security', that does not refer to the protection of the data on the NAS. Data access would be kept secure by use of passwords, and setting folder permissions.
Limitations:
- Ensure that the IP address or NAS Hostname does not change, or the whole process shown below, would need to be repeated.
- Certificate errors are related to the browser used, and not be firmware on the NAS.
[B]Export[/B]
- This is normally what we see when accessing the ReadyNAS dashboard. The customer usually wants to eliminate this certificate error.
- Login to the dashboard and enable HTTPs.
- When you click on it, make sure the SSL Key Host is the IP address of the ReadyNAS itself.
- Click on the X beside https on the link.
- Click on 'Certificate Information'.
- Click on 'details', and you will see the option 'Copy to File'.
- The Export Wizard will open as shown.
- Pick DER and 'Next'.
- Make up a file name. Click 'Browse' to pick the directory you save the cert file to. Eg C: drive or Desktop.
- Click 'Browse' and 'Next'.
- Click 'Finish' and 'OK'.
[B]Import[/B]
- Now to import the Certificate.
- On the Tools menu, click 'Settings'.
- At the bottom of the screen, click on 'Show Advance Settings' and you will see the HTTPS/SSL option.
- Click on 'Manage certificates'.
- Click on 'Trusted Root Certification Authorities.'
- Click on 'Import' and the Wizard will open as shown.
- Click 'Next'.
- Click Browse. Select the *.cer cert file saved earlier, and 'Next'.
- Click on 'Next'.
- Once complete, close and then re-open the Chrome Browser . You should not have any further Certificate warnings. Note the green padlock symbol on address bar.