ARRIS TG1682G | Model number: TG1682G dropping internet several times a day. Not WIFI

My modem is dropping several times a day.  I know it's not the wifi because internet will drop first.  Then after a bit, the modem appears to reset all together.  

customer support tells me to reboot and it works okay after that, but then get the same behavior later.  This happens every single day at least 3 time each day.  I've already had the equipment switched out.