Hi just recently I am getting the above comment when I try to get on some websites. Never had an issue before and now I suddenly get this message when I tried to access my account with the lottery:
The connection for this site is not secure. www.national-lottery.co.uk sent an invalid response. ERR_SSL_PROTOCOL_ERROR
Also when I click on the" i" which appears at the side of the address it says the site does not have a certificate. This happens when I try to access other sites as well.
I cannot send email out either which happened at the same time.
Make sure you don't have parents control and BT Web protection on. You can turn these off in MyBT.