we were having same problem of wifi disconnecting constantly after switching to arris 2-in-1 modem, with multiple unhelpful chats with comcast. wired into the arris, internet speeds were fine. so problem was wifi, not actual internet connection. ...thanks, dtomatelli. security setting change (from default to WPA-PSK (TKIP)) and setting channel seemed to fix problem of wifi disconnects. but, it made wifi speed from from about 52 mbps to about 19 mbps. so, changed security setting to WPA2 PSK-AES (per some other forum threads), and speed went back up to over 50. and now we can stream videos over wifi without constant shut-downs. thanks, all for helping puzzle through this stuff!
... View more