Some websites like w3 schools does not open on my internet. I have tried to open these websites on other places internet and it opens there. I asked my internet service provider about the problem and he replied that its not from our side. What should i do to fix the problem?

CodePudding user response：

Many sites are filtered or blocked by gov. vpn should work

CodePudding user response：

Might be VPN or Antivirus if configured or maybe something else.

However, i had the similar issue very long back and after doing hell lot of search, found it to be the value that was set for the field MTU was the problem.

Try, login to your router and search for MTU value configured, this might be under the configuration Internet Connection Setup (or may be with similar name).

In my case it was configured with value 1492, changing that to 1480 or 1430 worked for me. Also, if this doesn't work check with your ISP provider on the other possible configurable values.