Internet connection validating identity
Do an antivirus scan on the computer and try installing a different browser and accessing that website in the other browser.
There are lots of other software problems that could be the cause, including a misconfigured firewall.
You can try accessing a website at its IP address directly, which bypasses the DNS server.
For example, plug this address into your web browser’s address bar to visit Google directly: If the IP address method works but you still can’t access google.com, it’s a problem with your DNS servers.
To test whether the problem is really with your router or not, you can plug your computer’s Ethernet cable directly into your modem.
If the connection now works properly, it’s clear that the router is causing you problems.
When you try to access Google.com, your computer contacts its DNS server and asks for Google.com’s IP address.
The problem could be caused by a virus or some sort of malware or an issue with a specific browser.If you are experiencing problems with a variety of websites, they may be caused by your modem or router.The modem is the device that communicates with your Internet service provider, while the router shares the connection among all the computers and other networked devices in your household.This problem can be with the website itself (unlikely if the same problem occurs on multiple websites), with your Internet service provider, or on your network (for example, a problem with your router). For example, ping will never results in any responses.If you’re experiencing issues accessing websites and ping seems to be working properly, it’s possible that one (or more) websites are experiencing problems on their end.
The web server responds to each packet it receives.