I cut over to 1Gbps fiber a few weeks back. When the tech installed the service, their internal speed test showed 900Mbps+ bi-directional. Later, when I attempted to run my own speed tests against CL's public-facing speed test servers, I could never exceed 500Mbps down (sometimes no more than 250Mbps) while upload was consistently around 900Mbps. Several 3rd party test servers could hit 900Mbps+ bi-directional. Multiple, simultaneous speed tests to the CL servers showed a predicable decrease in performance per test, i.e. 2x tests @ 250Mbps vs. 1x test @ 500Mbps.
I contacted CL and was informed that it's a known issue and was being worked on. There is no ETA on when their speed test servers will be able to handle 1Gbps customers. I was unable to get any additional detail despite multiple attempts.
My only concern is that the "official," on-net means to validate performance doesn't work for a segment of their customers.
At any rate, I thought it might be useful to post in case someone else stumbles on the same issue. If anyone out there is "in the know," I'd love to hear a little more detail.
EDIT: This is my experience in Phoenix, AZ. It may be different market-to-market. Edited topic to reflect.
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