I believe that can be explained by the relationship between signal strength and download speeds. The weaker the signal, the slower the download speed. So if you are in a marginal area with weaker 4G signals than milan, that would explain it.
As someone else posted, the way VZW upgraded to 4G LTE was to upgrade some towers in an area to 4G LTE and leave some as only 3G capable. Eventually all will be 4G LTE, but for now, you have spotty 4G LTE coverage except in the major metro areas. The closer you are to the 4G towers, the stronger the signal and the faster the download speeds.
There are other factors you guys aren't taking into affect. Like how many other people are hitting the same tower you are? What is the back haul like for that tower, etc?
The reason some people in NY are seeing 71mbps is because that is a prime convention spot for verizon so obviously it has the latest and great coverage and 10gb backbone pipes to transfer the data.
Where as those that are seeing 8 - 10mbps they might be in high population area with a less robust back plane. There are also other factors like attrition that come in to play when the signal has to travel further distances. It isn't as simple as, “i have 4 bars I should be getting 60mbps“
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