It seems the entire Sunrise/UPC network died for an hour or two as they messed up their DNS servers. Only two options. One, wait. Two, change your DNS servers to cloudfare 1.1.1.1 or google 8.8.8.8.
Of course, that’s assuming it’s a DNS issue. Sunrise didn’t say anything about the outage. And even if they had, most of us wouldn’t have been able to connect to the net to read it 🙂