Recently upgraded to 400mbps, able to get 250 - 300 mbps max - high correctables - Time Warner Internet

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This question is about "Recently upgraded to 400mbps, able to get 250 - 300 mbps max - high correctables", with Time Warner Cable internet and apps.


Arris TM1602AP2 Modem, directly connected to PC. Speedtesting on speedtest.net - Spectrum Ohio server, as well as several local servers. Zip code is 40489. Internet service only, previously had tv service. Splitters have been eliminated from the lines, and the line to my modem is connected to the line coming from underground with a coax coupler. Have heard of cellular causing interference, so for giggles my carrier is Verizon.

Recently upgraded to 400mbps, able to get 250 - 300 mbps max - high correctables?
 
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