Hi there @Vita2 , if you're referring to a clicking sound coming from your nbn NCD, it's not a good idea to attempt repairs on this yourself, instead have Telstra raise a fault for you, call 13 22 00, bear in mind there will be lengthy delays due to the current COVID-19 situation. Read some information about nbn supplied equipment here.
While I am a Telstra employee, I am not an official Telstra representative on CrowdSupport. My opinions are my own and do not necessarily represent those of Telstra.
Hello