You are asking this way:
I'm 25 years old. What is the date DD.MM. when I was born?
It is not possible to answer the day-number and the month-number from this poor information "I'm 25 years old"
You have to be much more specific what was the situation when it was working?
What code?
What router?
What Ip-adress?
was used when it was working
what has changed since it was working?