Recent answers to Unable to access the WEB Manager of my ARRIS SGB6782-AC Wireless Cable Modem Gateway (Error code: SSL_ERROR_UNSUPPORTED_VERSIONhttps://support.mozilla.org/ar/questions/13753192022-06-16T23:45:08-07:00SSL_ERROR_UNSUPPORTED_VERSION is unable to access. please help me out
2022-06-16T23:45:08-07:00numalb25https://support.mozilla.org/ar/questions/1375319#answer-1512986<p>SSL_ERROR_UNSUPPORTED_VERSION is unable to access. please help me out
</p>Are you possibly using a VPN or proxy ?
You can check the connection settings.
Settings -> 2022-04-26T13:45:33-07:00Jameshttps://support.mozilla.org/ar/questions/1375319#answer-1500426<p>Are you possibly using a VPN or proxy&nbsp;?
</p><p>You can check the connection settings.
</p>
<ul><li>Settings -&gt; General -&gt; Network: Connection -&gt; Settings
</li></ul>
<p>If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.
</p><p>See "Firefox connection settings":
</p>
<ul><li><a href="https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors" rel="nofollow">https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can" rel="nofollow">https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites" rel="nofollow">https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites</a>
</li></ul>
<p>You can also check these security.tls on the <b>about:config</b> page and make sure they are default (i.e. not bold).
</p>
<ul><li>security.tls.version.max 4
</li><li>security.tls.version.min 3
</li><li><a href="https://support.mozilla.org/en-US/kb/about-config-editor-firefox" rel="nofollow">https://support.mozilla.org/en-US/kb/about-config-editor-firefox</a>
</li></ul>from https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect#w_tls-ver2022-04-26T13:43:19-07:00Jameshttps://support.mozilla.org/ar/questions/1375319#answer-1500425<p>from <a href="https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect#w_tls-version-unsupported" rel="nofollow">https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect#w_tls-version-unsupported</a>
</p>
<blockquote>TLS version unsupported
Some websites try using outdated (no longer secure) Transport Layer Security (TLS) mechanisms in an attempt to secure your connection. Firefox protects you by preventing navigation to such sites if there is a problem in securely establishing a connection. Contact the owners of the website and ask them to update their TLS version to a version that is still current and still secure.
Since Firefox version 78, the minimum TLS version allowed by default is TLS 1.2. Websites that don't support TLS version 1.2 or higher will display a Secure Connection Failed error page with Error code: SSL_ERROR_UNSUPPORTED_VERSION and a message that says, This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox</blockquote>Web search: https://www.bing.com/search?q=SSL_ERROR_UNSUPPORTED_VERSION
2022-04-26T12:58:09-07:00fredmcd-hotmailhttps://support.mozilla.org/ar/questions/1375319#answer-1500421<p>Web search: <a href="https://www.bing.com/search?q=SSL_ERROR_UNSUPPORTED_VERSION" rel="nofollow">https://www.bing.com/search?q=SSL_ERROR_UNSUPPORTED_VERSION</a>
</p>