I currently have the 155 MB plan, but with my modem I’m only getting about 80 MB. Looking to upgrade my modem, and looking at docs is 3.1 and 3.0. I know I don’t need 3.1 for my current speed, and when I called RCN, they said 3.1 will not work with my 155 MB plan. Is that correct? I thought 3.1 was backwards compatible with 3.0. I want to buy 3.1 now, so I can easily upgrade in the future.
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