Comcast arris touchstone telephony modem help?

[Reaper]

I have Comcast triple play and I've had it for a few of years. I was playing my ps3 when it just kicked me offline and wouldn't let me sign back in. It would sometimes let me but then kick me right back off. When I checked my modem I saw that only the power light was on. I resetted it multiple times and when it does the powering on process it goes through the power, DS, US, and Online led lights normally. When it gets to a certain point (most of the time link howerver sometimes it goes all the way through) it stops blinking and resets itself and starts the whole process over again. I've had this modem for few years and it hasn't caused me too many problems before. Help please