I had a tata bb and it almost been a yr since im using dataone with ut300r2u.currently im using a xavi x7721r+ modem with the phone line for dataone as i successfully configured it but the wan or the the dsl link keeps going off and keeps coming on.pls can u help me on this.Im unhappy with the ut300r2u as it gets heated up too quickly and the dsl goes off ethernet starts flashing very fast.