For starters here is some information about my setup.
ISP: Cox Communications, Location Phoenix Area
ISP Package: Premiere 100/10
Modem: Motorolla Surfboard S86121
Router: ASUS RT-AC56R
Recently my internet has been dropping randomly. Most of the time it is late at night, and I know Cox is installing Gigablast in Phoenix so maybe this has something to do with it. Or they have just been doing random maintenance. But it dropped in the daytime today, which is very rare. So I called and did the automated modem reset which resulted in nothing. I then unplug all the cables from the modem wait a few minutes and re-connect them. Still results in nothing, so I called them again and spoke to someone about the issue. He said that there was no problem in the area that he could see. He did a different type of reset which eventually fixed the modem, but he said that some of the upstream signal levels were low. So I went to 192.168.100.1 to see my modems stats and it showed some lower levels. But I'm not exactly sure how to read this and would love some help to decipher if it's more likely an ISP issue or if it could be a modem issue.
My most recent speed test results are fine: Speedtest.net by Ookla - My Results
I did a ping test yesterday and got a result of 0% packet loss, 1% jitter, and now I got this today
Here are my modems stat pages: Modem Problem - Album on Imgur
Overall today things have been just taking longer to load with sometimes them timing out. It's been a very annoying issue and any help would be appreciated.