I got mine in November 2017 and I installed it with no problems. My old Comcast modem had a battery for backup, I removed it and installed it in the new modem - again, no problem. I ran both speed test programs - speakeasy.net and speedtest.net - and I am currently running at 240 mbps download and 12 mbps (I just ran speakeasy and it clocked 299.7 and 11.8) even at peak times. Go for it.