If you are unable to connect to a website despite having a working internet…

Concept: Reaching a website is a two-stage process. First, your computer must translate the human-readable domain name (e.g., example.com) into a numeric IP address — this name-to-address translation is performed by the Domain Name System (DNS). Only after a valid IP address is returned can the browser open a connection and fetch the page. A 'working internet connection' confirms only that packets can travel to and from your network; it does NOT guarantee that name resolution succeeds.

Application: When the resolving DNS server is down or misconfigured, the browser submits the domain name but receives no usable IP address in return. With no address to dial, the connection attempt never starts, so the site fails to load even though raw connectivity (ping by IP, other already-resolved services) may still work. This is exactly the scenario described: internet works, but a website cannot be reached.

• A recent change in the website's IP address is normally handled automatically — DNS records are updated and resolvers fetch the new address, so users keep reaching the site.

• An uncleared browser cache may serve stale page content, but it does not stop a fresh connection from being established.

• A firewall misconfiguration usually blocks broadly or by port, not the single 'cannot reach one website while internet works' pattern, and is not the most likely everyday cause.

• An outdated operating system rarely prevents a basic website connection on its own.

Therefore the most likely reason that a website is unreachable while the internet connection works is that the DNS server is down or misconfigured.