Recently on setting up a new internet connection, I ran a speed test via ( speedtest.net ) with produced the following error
Latency Test Error – Could not connect to the test server A firewall could be blocking the connection or the server might be having some issues
Pinging Google DNS Server 188.8.131.52 came up with a sold under 15m response , strange?
I tried playing around with the MTU to no avail either
Turns out this is actually a DNS issue, the local DNS servers had forwarders set to their Old ISP , so change the DNS to the new ISP or Google fixed this!