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Can't load or watch ANY videos, not just on Youtube. What's up!

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Just get this message! Your connection is not secure

The owner of www.youtube.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this

Just get this message! Your connection is not secure The owner of www.youtube.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this

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Hi KKrystal, most likely Firefox is not set up to work with your security software's web filters. To confirm the source of the issue, could you:

On the error page, click the Advanced button. This should display additional technical details about the source of the problem. In particular, it should show an error code that usually starts with SEC_ERROR. Could you copy/paste that error detail into a reply?

Jumping ahead in case it's helpful, this article covers one of the codes that comes up most often on this forum: How to troubleshoot security error codes on secure websites.

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https://www.youtube.com/watch?v=oEMllGHJjq8

Unable to communicate securely with peer: requested domain name does not match the server’s certificate.

HTTP Strict Transport Security: true HTTP Public Key Pinning: true

Certificate chain:


BEGIN CERTIFICATE-----

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END CERTIFICATE-----
BEGIN CERTIFICATE-----

MIIESTCCAzGgAwIBAgITBn+UV4WH6Kx33rJTMlu8mYtWDTANBgkqhkiG9w0BAQsF ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6 b24gUm9vdCBDQSAxMB4XDTE1MTAyMjAwMDAwMFoXDTI1MTAxOTAwMDAwMFowRjEL MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEVMBMGA1UECxMMU2VydmVyIENB IDFCMQ8wDQYDVQQDEwZBbWF6b24wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK AoIBAQDCThZn3c68asg3Wuw6MLAd5tES6BIoSMzoKcG5blPVo+sDORrMd4f2AbnZ cMzPa43j4wNxhplty6aUKk4T1qe9BOwKFjwK6zmxxLVYo7bHViXsPlJ6qOMpFge5 blDP+18x+B26A0piiQOuPkfyDyeR4xQghfj66Yo19V+emU3nazfvpFA+ROz6WoVm B5x+F2pV8xeKNR7u6azDdU5YVX1TawprmxRC1+WsAYmz6qP+z8ArDITC2FMVy2fw 0IjKOtEXc/VfmtTFch5+AfGYMGMqqvJ6LcXiAhqG5TI+Dr0RtM88k+8XUBCeQ8IG KuANaL7TiItKZYxK1MMuTJtV9IblAgMBAAGjggE7MIIBNzASBgNVHRMBAf8ECDAG AQH/AgEAMA4GA1UdDwEB/wQEAwIBhjAdBgNVHQ4EFgQUWaRmBlKge5WSPKOUByeW dFv5PdAwHwYDVR0jBBgwFoAUhBjMhTTsvAyUlC4IWZzHshBOCggwewYIKwYBBQUH AQEEbzBtMC8GCCsGAQUFBzABhiNodHRwOi8vb2NzcC5yb290Y2ExLmFtYXpvbnRy dXN0LmNvbTA6BggrBgEFBQcwAoYuaHR0cDovL2NydC5yb290Y2ExLmFtYXpvbnRy dXN0LmNvbS9yb290Y2ExLmNlcjA/BgNVHR8EODA2MDSgMqAwhi5odHRwOi8vY3Js LnJvb3RjYTEuYW1hem9udHJ1c3QuY29tL3Jvb3RjYTEuY3JsMBMGA1UdIAQMMAow CAYGZ4EMAQIBMA0GCSqGSIb3DQEBCwUAA4IBAQCFkr41u3nPo4FCHOTjY3NTOVI1 59Gt/a6ZiqyJEi+752+a1U5y6iAwYfmXss2lJwJFqMp2PphKg5625kXg8kP2CN5t 6G7bMQcT8C8xDZNtYTd7WPD8UZiRKAJPBXa30/AbwuZe0GaFEQ8ugcYQgSn+IGBI 8/LwhBNTZTUVEWuCUUBVV18YtbAiPq3yXqMB48Oz+ctBWuZSkbvkNodPLamkB2g1 upRyzQ7qDn1X8nn8N8V7YJ6y68AtkHcNSRAnpTitxBKjtKPISLMVCx7i4hncxHZS yLyKQXhw2W2Xs0qLeC1etA+jTGDK4UfLeC0SF7FSi8o5LL21L8IzApar2pR/


END CERTIFICATE-----
BEGIN CERTIFICATE-----

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END CERTIFICATE-----
BEGIN CERTIFICATE-----

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END CERTIFICATE-----
BEGIN CERTIFICATE-----

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END CERTIFICATE-----
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I think what is happening is that a proxy server (ZScaler) is substituting a message from a different server and that causes the error message.

The page it seems to be trying to show you has content like this:

Restricted Website Ahead!

We have noticed that you are trying to access [URL]. This website has been restricted by your organization's Internet filtering and security policy which is why we have prevented your computer from connecting to it.

For further assistance, please contact your IT support organization.