So I had the Arris SB6141 for quite a while — loved it. But when TWC upgraded my package to 200Mbps for no extra charge, it became apparent that the 6141 didn't support enough channels to get to those speeds. It seemed to cap out between 100 and 120 Mbps. So I just purchased and installed the Arris SB6183. However, it seems a little bit inconsistent and in reading over several other forums I see there are isolated issues with the 6183 on Time Warner. Sometimes I'll get a speedtest at <10Mbps, other times it jumps up into the 100s. It doesn't seem to ever exceed 150Mbps or so, save one outlier test at 180Mbps. I'm sure part of that could be coax line quality and/or LAN connection quality, but all the levels reported on the modem's status page seem to be within the ideal range, and my clients are all either wired or on 802.11N or AC reporting 300Mbps+. Does anyone have any specific recommendations re: the best cable modem to buy to get to 200Mbps on Time Warner? I'm toying with exchanging the 6183 for something else at Amazon, perhaps a Netgear of some variety. FWIW my main router and the WAP for my deck are both ASUS units. I don't expect those are the issue. Thanks in advance!