XFi Pods Offline

My XFi Pods are less than a year old and stopped working. They show offline and will not sync. Removed two of them and tried to setup again but system won’t recognize them now. Called support and they sent a tech to work on my Internet. Pods still do not sync. No one has been able to help me and these are less than 1 year old and I haven’t even been with Comcast for one year yet. I miss AT&T Uverse but they are not in my area yet. Can anyone help get my XFi Pods back online? Help 😞