I am wanting to purchase my own modum router.Right now, I am using the Arris NVG510 Modum At&t tech support agents says I can purchase my own & it will work & some At&t agents says I have to rent the modum from them. I am tired of paying At&t over $120.00 a year to rent theirs. Someone please help me please I will be very thankful for you help. I have At&t U-Verse internet.