The Microsoft Network Adapter Multiplexer Protocol appears in the list »Items used by this connection» for Wifi Properties. This option is disabled for many people by default and, often, confuses them if turning it off or on has an effect on their connection or bandwidth. Actually, It is not feasible to enable this protocol while the rest of the alternatives in the list are enabled.
Microsoft network adapter multiplexer protocol listed in Wifi Properties
What is the Microsoft Adapter Multiplexer Protocol?
The Microsoft Adapter Multiplexer Protocol is a special set of settings that comes into play when a user combines two different connections. Actually, is a kernel mode driver used for network interface binding. This means that two Ethernet cards are combined to form a physical device to increase bandwidth..
When the NIC team starts, multiplexer protocol is enabled for one or two (depending on the connection and the number of network adapters connected) adapters, while others continue to use other items on the list. So, Network Adapter Multiplexer Protocol is used only when two or more adapters are combined. Regularly for a LAN connection / VAN.
Should it be enabled?
Many users ask whether they should enable it or not. Simply, this protocol only comes into play when combining network adapters or creating a bridge connection as previously explained. If you try to activate this option manually while the other items in the list are activated, you will see this error
The error message appears when trying to activate the Multiplexer protocol
If you click on »Yes» the protocol remains deactivated and the other items are activated for your connection. If you click on »No» you will return to the list and no changes will be made. Even if you disable all other options and try to enable only the »Microsoft Network Adapter Multiplexer Protocol», still shows this error. This means that it cannot be activated unless a connection is introduced into a bridge.. So, should not be enabled. It activates automatically when a bridge is created and does not need manual activation.
