Very true. Frontier is a company out to make a profit, after all. If there is limited population growth in an area and Frontier isn't seeing a very high number of new subscribers per year, they're unlikely to invest any more than they absolutely have to in that area. If they see 7-20% growth in an area consistently, they will likely have VDSL2 within 6 months. If the growth is closer to 0% or even declining, you'll be lucky to *keep* the level of service you have now.
I was once told by Frontier if I'm getting over 1mbps 70% of the time, they don't have any obligation to improve my service. I hope you live in a growing market!--
CompTIA Net+ Network Administrator - I know networks!
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Nice and comfy with Frontier DSL: I can help with your issues!