Your device is paused

I am so frustrated with Xfinity. I “upgraded” to a new router and “faster” speed not too long ago. My bill went up over 30 with discounts added. Now, every day our phones, computers and other devices are constantly randomly disconnecting from our router and we get the dreaded “your device is paused”. I have called twice about this and it works for a little while, but a few hours later it happens again. Does anyone else have this problem and have you fixed it?  Also, how to you get customer service? Not even the chat works.