Boosters weren't pairing to the router!
I would like to say that not every agent at Community Fibre has the same level of knowledge. Today I was on hold with an agent, don't remember his name, for around 57 minutes, he couldn't solve my problem. He was polite but the issue was still there despite many attempts he advised me to pair the boosters to the main router! In the end I got very tired and asked for a break and hung up. I had to call back and speak to another person. This time was an agent Miley, she reassured me and guided me step by step to solve the problem. Thank you Miley for your help and support. You are the star of the day, honestly!