When I got back to town this afternoon I went down to the local Time Warner office, exchanged the old modem (Motorola SBG6580) for the new one with the faster capability (Arris T61672G), and hooked up the newbie. I needed a Time Warner techie to help me get it right, but it’s now showing speeds between 117 mbps and 122 mbps.  The techie told me the speeds will gradually increase over the next few hours or days. Excellent. Except the new network is identified as “[user name] 5G” with the same password. Which means, of course, that the Oppo player, the Roku player and the Apple TV have no connectivity because they’re coded to communicate with the previous network. (I’ll figure it out tomorrow.) I’m dumped my cable entirely and am relying entirely on wifi and apps — better late than never.