Devices blocked from Wi-Fi

Hey there, @user_69185f, thanks for reaching out through Xfinity Forums! Once a device is removed from a profile, this will remove the device from the Connect section and unassign it from the profile it was associated with, if applicable. It will also permanently delete all historical network activity of this device. If the device reconnects to your home network, (you may have to have the device forget your network and reconnect it to your wireless network), it should then appear as a new device. Once the device is reconnected and appearing as a new device, you should be able to assign it to the appropriate profile by following these steps: 

Under Assigned Devices, select Assign Device.

Click the checkbox next to the device(s) you want to assign.

Finish assigning devices by selecting Assign

We also have a helpful how-to here: Managing Profiles with Xfinity xFi - Xfinity Support that will go over how to manage your user-profiles and assign/name newly connected devices.