The are known issues with the TM1602 modem. It's intel based:
Any broadcom based modems do not have these problems like Intel modems have:
I'm using a Motorola MB7420 and Arris 6183 with a 200/10 ISP service with an R1 and a XR500 routers. Zero issues.
Always contact your ISP to see what they officially support first.
The TC 7610 is a 8x4 modem. Is capable of a bit over 300Mb however some ISP like to use more channels for higher speeds. So with mine using 200/10, my modems are 24x8 channel modems. My ISP recommends using the 24x8 modems over 8x4 for faster or higher speed tiers. All depends on what ISP implement and required for there systems to work at speeds on there networks. Review what your ISP requires for there networks.
If you keep the 200 speed tier, get in to a 24x8 channel modem. It's up to you want to down grade. Speed depends on your needs. UP Link is more important than download.
currently have spectrum internet (300+ mbps down /20+mbps up) using a ARRIS TM1602 been using it for a few years now and always notice a bit of lag and ping spikes.. after some research and comparing to your "good" list with my ISP my only options seem to be the TC7610 or the TC7610E ..
what is the difference between the two?
and would It be in my best interest to downgrade my service to the 100mbps package if im taking this route?