I hate to tell you to lease, but avoid the netgear. Why? Because comcast will make it obsolete at will.
I paid big bucks for an AC1900 a year or so ago because it had the xfinity sticker and said it would do 1gbp (technically 960mbps). I was told by comcast it was supported and once I went 1gbps one day it would do the job.
Today I was told it won't work and tough luck. Buy a new modem. This was for a fully xfinity supported modem listed on their site and with a sponsored sticker on the box. Vocally told by two employees it was good up to 1gbs.
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