Issue -Internet service from ISP (internet service provider) is not available or failing intermittently. Resolution- The call centre of ISP needs to be contacted for resolving this issue. Issue – The internet connection is working, other websites are opening properly but incometaxindiaefiling.gov.in not opening properly. Resolution- You may try the following fixes: Check your Windows HOSTS file – Make sure there’s no entry in the hosts file that maps the website’s URL (incometaxindiaefiling.gov.in) to localhost or 127.0.0.1 or an incorrect IP address – it is a possibility if you have imported some third-party hosts file or it’s modified by some malicious software installed in the computer. Type cmd /k notepad c:WINDOWSsystem32driversetchosts in the Run window to view hosts file Clear DNS Cache and use Public DNS – The DNS cache keeps a record of sites that you have recently visited on your computer. If that gets corrupted, you may have issues opening sites that were previously accessible without problems including incometaxindiaefiling.gov.in. Type cmd /k ipconfig /displaydns in the Run window to see the cache entries. If that unreachable website is listed in the cache, type cmd /k ipconfig /flushdns to clear the cache. Change the DNS of the network connection which you are using in your local PC. You can do this by editing the properties of the internet connection. Two most recommended DNS’ are Google DNS (e.g. 8.8.8.8, 8.8.4.4, 4.2.2.2) and open DNS. Suspend the Anti-Virus and Firewall – If you are running an external software firewall or anti-virus program (like Norton, ZoneAlarm, etc), exit and restart the web browser. Restart the internet connection.