My wifi ssid not even showing up to any of my devices

So I bought my router on 25 April 2024 , it is Mercusys MW325R v3 .It was going perfectly fine until 06 may 2024 in the morning around 8 to 10 am, when i woke up and turn on wifi in my phone , my wifi ssid named AR 47 is not even showing up in my phone. I quickly checked my router and onu and it was all ok, all the necessary led was on like no problem, but i refreshed a few time in my phone so that i can find the ssid to connect but failed. Then i opened my laptop and same thing happened also, there was no sign of my ssid in the laptop also. Then i decided to restart the router. So i disconnec

Question by Ashik on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.