My digital box is making a intermittent clicking/popping noise
Could be thermal expansion. Is the box hot to the touch? If so try moving/elevating it to get more airflow. Even so, it's not normal.
I was hoping for an easy fix and I've tried moving it ,even put my small fan near it too without success . Might be time for a call to Telus !
If the digital box contains a hard drive then it may be the source of the noise . Hard drives may make a clicking noise prior to failing