Setting up internet in new apartment blinking white light

Hi! I just moved into a new apartment complex and went to the store to set up an Xfinity account and get a modem. I followed the easy instructions to set it up, but the light on the modem is blinking white and I am unable to connect to the internet. I tried troubleshooting with the Xfinity chat in the app, but it did not work.

They tech at the store yesterday mentioned that the prior residents who just moved out had not yet cancelled their service, so I am wondering if that could be the issue and if it can be double checked?