Having to reboot modem every day

Starting about 2 weeks ago I have to reboot my SB8200 at least once a day.  Internet just completely stops working.  Massive packet loss to the point where I can't pull up a web page.  Rebooting devices downstream of the modem (gateway, wifi, client devices) makes no difference.  As soon as I reboot the modem everything starts working again.  Support has been no help and just run me in circles saying, "The signal to the modem is fine." I'm hoping someone might have a suggestion as to what to do next.  I've included a couple pictures of my connection status page.  Thanks.