No internet access when using AVG Internet Security

When using AVG I used to get a message on all of my browsers saying no internet connection.

 
I've followed all of the steps to rectify this and I now get "This Site Can't Provide A Secure Connection"

I've restarted my computer twice, I've uninstalled and reinstalled AVG several times, I've updated, everything I can find on here.

Hello Matt,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
We will certainly help you out.
Thank you and keep us updated.

Hello Matt,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
We will certainly help you out.
Thank you and keep us updated.