There are a whole range of things they might have done.
– They might have just rebooted your router. Sometimes a simple reboot fixes things.
– They might have assigned you to a different IP segment. Maybe the router you were going through is having issues or is overloaded.
– Maybe they discovered that your router’s config was wrong, and you weren’t getting the speed you were suppose to be, so they re-sent down the router config and that made the speed faster.
There are probably a few other things that they could have done, but those are probably the most likely.
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