Changing my router was the best thing I have done to my internet connection, but somehow it never occurred to me to change my modem until I just read your comment. Er, duh! Ordering one now.
Any recommendations from this list?:
http://www.spectrum.net/support/internet/compliant-modems-ch...
I've always used Arris (sometimes branded as Motorola) and had consistently good results.
Today, from that list, I'd buy the Woot SB6183 ($51.09 on Amazon-ASIN B018IS1S4C) as that's what I've been running at home for 13 months without issue. (I upgrade about every 6-9 years. You caught me "just" after the latest one.)
It's a 16x4 modem, though when I use it on Comcast, Comcast operates it as a 16x3 (16 channels down, 3 channels up)
The Arris/Motorola Surfboard series have always been great for me. I think the biggest difference between the cheapest model and the most expensive one is that the most expensive one is capable of a theoretical max that is multiples of what Comcast even offers. So, it's technically more future proof. I've had the cheapest one forever and never had issues with it being slower than my pipe could deliver.
I've been using a Zoom modem for years now with no issues at all. The Surfboard series is also pretty well recommended by my friends in the industry.
I still prefer to avoid combo modems though, I find that the Wi-fi tech upgrades at a faster pace, and prefer to keep the devices separate rather than combined into one box. YMMV, do what makes sense for your setup.
Today, from that list, I'd buy the Woot SB6183 ($51.09 on Amazon-ASIN B018IS1S4C) as that's what I've been running at home for 13 months without issue. (I upgrade about every 6-9 years. You caught me "just" after the latest one.)
It's a 16x4 modem, though when I use it on Comcast, Comcast operates it as a 16x3 (16 channels down, 3 channels up)