To address frame size mismatch between connecting partners
Is it necessary to adjust the Maximum Transmission Unit (MTU) size of Intel® Network Adapter from default value of 1500 to 1492 in order to connect properly to a Point-to-Point Protocol over Ethernet (PPPoE) Logical Link Control (LLC) modem?
Modifying the MTU size of Intel® Network Adapter is dependent on the connecting equipment configuration. Contact the equipment provider to confirm if matching the MTU frame size is required. For some usage models, frame size mismatch triggers fragmentation and re-transmits request that contributes to connection issue.
Use to steps below to modify the MTU frame size in Windows* operating system:
- Open command prompt with administrator privilege.
- Type the - netsh int ipv4 set subinterface "Local Area Connection" mtu=1492 store=persistent command.