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I am getting this error while trying to open my old Hotmail account. Started while actually in my account.
Secure Connection Failed
An error occurred during a connection to outlook.live.com. Invalid OCSP signing certificate in OCSP response. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.
Any idea for a fix?
Managing personal Outlook.com account settings, security, and privacy
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Your not the only one so am I, i believe this is more to do with Firefox then Microsoft as other browsers work fine. Just report it to firefox the more people that report the more quicker firefox will look into the issue and fix it.
It is also affecting Outlook 2016 on Windows 10. Can't connect to Office 365 Exchange Online.
I phoned Microsoft and was told it was my computer. I don't think their overseas call centres are up to date with problems.
I found a temporary solution under a topic posted 29/05/17 called `Error when trying to log in to outlook using Firefox'. It's worked for me.
I will go back in 24 hours to change false' back to true' in 24 hours. Hopefully, Microsoft will have fixed their problem by then.
Had this same problem today. I typed in outlook.com in the address bar, instead of my usual hotmail.com, and it worked just fine, but even outlook.com gave me the same error message only once, whereas hotmail.com gave an error every time, and still does.