A little less than a year ago, I purchased a Netgear R6400 (AC1750) router. Things have been working great until sunday night. We returned from an overnight trip and I noticed about 30 minutes after turning everything back on that I could not connect to a game in Overwatch via wired network. After a few minutes of waiting, I was able to get into a quickplay game and had no latency. About 20 minutes later, everything stalled both on wifi and wired. I power cycled both the modem and the router and even though it had a couple of hiccups, things seemed to go good.
Last night we came home from doing errands and it was doing the same thing. Checking the Send/Receive on my desktop, it was sending but not receiving anything. According to comcast my modem was online and active. I power cycled the router and it worked for about 20 minutes before doing it again. I did another power cycle, then logged into my router and updated the firmware. That seemed to fix the packet loss issue, but Netflix was still being slow transitioning from the end of one episode to the next. Whereas in the past it would take maybe 2-5 seconds, it would sit and buffer for a good 15-30 seconds between episodes.
Any other troubleshooting I can do? I checked to make sure no one was leeching (guest account is disabled and doesn't broadcast), only devices connected at that time was my desktop (wired), both our IPhones, and our IPad. All other settings looked good.