Got this error just now. Already tried waiting more than 30 seconds. Hoping this is either client related and I just need to do a hard refresh [Ctrl+F5] or ipconfig /flushdns. It could just be a load balancer or routing issue and could be corrected within the hour automatically via the BGP routing protocol. Assuming it’s not DCE or DTE related on the ISP:ISP [cloud] side of things.