If you are having difficulty accessing certain websites, it could be due to DNS issues. Here are some steps you can take to troubleshoot the problem:
Check your DNS settings: Make sure that your DNS settings are correctly configured. Check that the DNS server addresses are correct and that there are no typos or errors in the settings.
Check your firewall: Your firewall could be blocking access to certain websites. Make sure that your firewall settings are correctly configured and that the websites you are trying to access are not blocked.
Clear your cache: Clear your browser cache and try accessing the websites again. Sometimes, the cache can cause problems with website access.
Check your hosts file: Make sure that the hosts file on your computer does not contain any entries that are blocking access to the websites.
Use a different DNS server: Sometimes, the problem could be with your DNS server. Try using a different DNS server, such as Google DNS or OpenDNS, and see if the problem is resolved.
If you are still unable to resolve the problem, it may be best to seek the help of a professional like me who can diagnose and fix the issue for you. A web developer or IT specialist with experience (like me) in DNS issues can help you solve the problem quickly and effectively.
Regards,
Amir