Set MTU for a Windows 7 so package size fits MTU of th GRPE tunnel of the mobile connection

To lower the MTU size of a Windows 7 computer follow this procedure:

1. Open a command prompt with admin privileges (Hit [Windows key], type cmd and hit [CTRL]+[SHIFT]+[ENTER])
2. Run the following command within the cmd prompt and find out the name of your LAN adapter: ipconfig /ALL
3. Run the following command within the cmd prompt: netsh interface ipv4 set subinterface “Name of your LAN adapter” mtu=1340 store=persistent