Internet goes up then it stays down. up down up down

Hello , I am in Tucson AZ, and for the last week my modem disconnects my internet till I reset the Modem and router. I have a motorola  surfboard SB5101 connected to a Netgear WNR1000 router. I have lived at my location for 2 years and have used internet 24/7 with absolutely no fallout. Recently my neighbor got cox and now i have a slew of problems to where just the receive light is blinking on my modem with no online light. I am going crazy resetting every thing everyday just to have internet. Please help. Thank you.