Random internet drops

[#1]

On Fibre Unlimited. Got a random internet drop at about 10pm-10.30pm, and one yesterday at around 3 or 4PM.
192.168.1.254 router status told me the internet was working fine. Did a connection test, fine. But, no websites would load. What's up?
On a plus note, speeds have stayed consistent since having this service from Wednesday at 64.5mbit. Though I would be happier if I was a little closer to the 78mbit sync speed!

[#2]

Hi there,
Does look like a couple of odd connections overnight on the 23rd, I'd guess it was down to the BT maintenance we had running last week? Sorry about the lack of data transfer though. Hoping things have improved since, that's certainly what should be happening to the connection speed.