Open cmd as an Administrator, Here are the commands you will need:
To calculate the MTU size:
ping google.com -f -l 1472
Ping till you get a reply by decrementing by units of 10, 1472, 1462.1452…..1372 and once you get a reply, increment by 1, 1373,1374,1375, 1376

Then fire up a calculator and add 28 to the max size i.e 1472+28=1500
To set the MTU size:
netsh int ipv4 set subinterface “Ethernet” mtu=1500 store=persistent
To see the MTU size on your computer:
netsh interface ipv4 show subinterfaces
