My dns is not updating
If DNS did not exist, surfing the web would not be easy, since we would have to enter IP addresses for every website we wanted to visit.
A DNS server is rather like a translator between an IP address and the hostname.
It is easier to remember 2.55, a fact that applies to every page on the web.
There might be a problem with your router configuration - this can also cause this "DNS server is not responding" error.
To fix it, reset the router to its default settings.
Furthermore, computers store DNS responses locally, so the DNS request does not happen every time you connect to a particular domain name that you have previously visited.
Once your computer has determined the IP address associated it with a domain name, it will remember that for a period of time.