Change this setting from the CLI: # config system global set admin-https-ssl-versions (shift + ?) -Press the Windows key + R to start Run, type regedit, and press Enter or click OK. -Now go to the following key and check it. 06-09-2022 Click it. It is also possible that the website you are trying to access uses the TLS 1.2 encryption and you dont have it enabled in your Windows. Select whether to fail or temporarily fail if a TLS connection with the parameters described in the TLS profile cannot be established. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client\DisabledByDefault Go to Policy > IPv4 Policy or Policy > IPv6 policy . All in one, multiplatform too: https://nmap.org/nsedoc/scripts/ssl-enum-ciphers.html. These registry values are configured separately for the protocol client and server roles under the registry subkeys named using the following format: .. Validate Cipher Suites Offered to Servers from Windows Technical Tip: Modify the TLS version for the Fort Technical Tip: Modify the TLS version for the FortiGate GUI access. Technical Tip: How to change the SSL/TLS version u Go to VPN > SSL-VPN Settings . Checking a Websites TLS Version 1 Open a web browser on your computer, phone, or tablet. Nmap has very convenient TLS version and ciphersuite checking NSE script. If you find it, its value should be 1: TLS Web Secure: Requires a certificate-authenticated TLS connection. Replace