https://fitzcarraldoblog.wordpress.com/tag/mtu/
It's saying that the value of
is 0 and it should be 2. So they recommend running the command:/proc/sys/net/ipv4/tcp_mtu_probing
However not even root can write to that file. How can I put the value 2 and then of course when needed put it back to 0?echo 2 > /proc/sys/net/ipv4/tcp_mtu_probing