![opera mail authentication failed opera mail authentication failed](https://present5.com/presentation/59ad1807a1079247f7a18b8472dbd230/image-40.jpg)
- #OPERA MAIL AUTHENTICATION FAILED INSTALL#
- #OPERA MAIL AUTHENTICATION FAILED UPDATE#
- #OPERA MAIL AUTHENTICATION FAILED WINDOWS#
#OPERA MAIL AUTHENTICATION FAILED UPDATE#
You can manually update trusted root certificates following the article “ Updating List of Trusted Root Certificates in Windows”.
#OPERA MAIL AUTHENTICATION FAILED INSTALL#
We recommend that you always install the latest security updates in Windows. If your computer is in an isolated network segment, has not been updated for a long time, or has automatic update disabled, it may not have new trusted root certificates (TrustedRootCA).
#OPERA MAIL AUTHENTICATION FAILED WINDOWS#
If the time is reset constantly, see the article “ Windows displays wrong time after reboot”. Make sure that you have the correct time and time zone set.
![opera mail authentication failed opera mail authentication failed](http://brewintensive877.weebly.com/uploads/1/2/6/6/126619202/808845235.jpg)
During authentication, your operating system checks the date when the website certificate was created, when it expires and when the certificate of the certification authority will expire.
![opera mail authentication failed opera mail authentication failed](https://present5.com/presentation/59ad1807a1079247f7a18b8472dbd230/image-11.jpg)
If antivirus detects that the website is using an insecure (or self-signed) certificate or a legacy SSL protocol version (SSL 3.0 or TLS 1.0), the antivirus may block the user’s access to such a site. To understand if your antivirus or firewall blocks access to a site, try to pause them for a while.Ī lot of anti-viruses have a built-in module that checks the SSL/TLS certificates of websites. If you have an antivirus or a firewall (it is often built into the antivirus as a module) installed on your computer, they may block access to websites. You can view the list of enabled Chrome extensions in Settings -> More Tools -> Extensions or go to chrome://extensions/.
![opera mail authentication failed opera mail authentication failed](https://present5.com/presentation/59ad1807a1079247f7a18b8472dbd230/image-8.jpg)
We recommend to disable (delete) third-party browser extensions, especially anonymizers, proxies, VPNs, antivirus extensions, and other similar add-ons that can interfere with traffic to the target website.