Possible errors in the use of the electronic certificate
Skip information indexPersistent 403 error due to antivirus blocking
If after carrying out all the checks related to the electronic certificate (expiration, installation, import of a copy, etc.), the 403 error page or similar continues to appear, in many cases it is the antivirus that is preventing the signing or the one that is doing The certificate selection window is not displayed.
Below we show the most common antivirus check paths to review their configuration.
Kaspersky
Right-click the Kaspersky icon in the notification tray and select "Settings." If you open the Kaspersky panel, access the settings from the gear wheel icon located at the bottom left. Next, go to the "Advanced" (or "Additional"), "Network" menu. Select the "Do not scan encrypted connections" option.
If it is installed on a Mac and the certificate selector does not appear, click on the Kaspersky icon in the top bar and go to "Preferences". Next, within the "Connection" tab, in the "General" section, locate the "Check secure connections ( HTTPS ) for Safe Money, Private Browsing and Parental Control" box.
Bitdefender Total Security
Access the menu "Protection", "Online threat prevention", "Settings". Once inside the settings, locate the "Analysis of encrypted websites" box.
Bitdefender Free Edition
In this case, check the "Protection Shield" option, available from the "Settings", "Protection", "Protection Shield" menu.
Avast
Open the antivirus and go to "Options" (nut icon located at the top right). Go to "Components" or "Active Protection", and locate the "Web Shield" option to click on the "Customize" button. Locate the "Enable HTTPS scanning" option.
On Mac, open the antivirus from the icon in the menu bar. Click on it and then "Open." Go to "Preferences", "Shields", "Web Shield", "Options". Next, locate the “Scan private connections” and “Scan secure browser-only connections” options. For some options, the Mac user's password will be requested.
AVG
Access the AVG interface and select the "Menu", "Settings" option. Next, go to "Components", "Web Shield", "Customize". Locate the "Enable HTTPS scanning" option.
On Mac, you must first exit the browser. Then open AVG; You can locate its icon in the status menu located at the top right of the device. You can check if you have AVG installed in "Finder", "Applications". Then locate the "Web Shield" section. For some options, the Mac user's password will be requested.