Microsoft Network Adapter Multiplexor Protocol

What is the Microsoft Network Adapter Multiplexor Protocol, and when will it be turned on?

The Microsoft Network Adapter Multiplexor Protocol is shown in the Wifi Properties’ “Items this connection utilizes” list. This feature is deactivated by default for a lot of customers, and they’re often confused about whether disabling or enabling it will affect their connection or bandwidth. It is not feasible to assist this Protocol while the rest of the options on the list are permitted.

What is the Microsoft Adapter Multiplexor Protocol, and how does it work?

When a user mixes two different connections, the Microsoft Adapter Multiplexor Protocol may be a unique set of configurations. Network Interface Bonding is handled by this kernel-mode driver. This indicates that two Ethernet cards have been joined to form a single physical device with increased bandwidth.

The Multiplexor Protocol is enabled for one or two NICs when NIC teaming is started (depending upon the connection and the number of network adapters connected). Others, on the other hand, continue to use goods on the list. As a result, the Network Adapter Multiplexor Protocol is only used when two or more adapters are combined. Typically used in a LAN/WAN connection.

Is it necessary to enable it?

Many users wonder if they should activate it or not. As previously stated, this Protocol is only used when merging Network Adapters or building a Bridged connection. You’ll get this error if you try to enable this feature manually while the opposite items in the list are allowed.

If you select “Yes,” the Protocol will stay disabled, but the other things for your connection will be enabled. If you select “No,” you will be returned to the list with no changes. Even if you disable all other options and solely enable the “Microsoft Network Adapter Multiplexor Protocol,” the issue persists. This means that it won’t be allowed unless a bridge connection is made. As a result, it shouldn’t be turned on. It, on the other hand, is activated automatically when a bridge is built and does not need to be activated manually.

Microsoft Network Adapter Multiplexor Protocol

When the physical network is first initialized, Microsoft Network Adapter Multiplexor Protocol will be automatically installed. It is a kernel mode driver that is used primarily for Network Interface Bonding. It combines two Ethernet cards to create a single physical device.

It increases the bandwidth available or it can be described as a unique configuration that plays an important role in combining different ethernet connections. Microsoft Network Adapter Multiplexor Protocol can be enabled when Network Interface Bonding has been created. This protocol allows you to add adapters based on your internet connection.

How to Use It

You might be curious about where you can use Microsoft Network Adapter Multiplexor Protocol. It can be used for:

Adapter Grouping– Two or more adapters are used in adapter teaming to increase bandwidth. To allow users to send and receive more data packets.

High availability/Adapter Failure – If the first adapter fails, an alternative adapter will take over the network connection.

Do I have to Allow it?

As you know, Microsoft Network Adapter Multiplexor Protocol works when you add network adapters to your existing network or create a new connection. This means that the driver is automatically started whenever it is needed.

If you attempt to manually enable Microsoft Network Adapter Multiplexor Protocol, nothing will happen. Let’s see what happens.

Navigate to the Network Connection folder on your computer. The folder can be found at the following location: Control Panel > Internet and Network > Internet Connections.

Right-click on the default network connection to select Properties.

You will find many options in the Wi Fi Properties dialog. These include Microsoft Network Adapter Multiplexor Protocol.

If you click the box to confirm, a dialog box will open with the message ” Your current selection will also disallow the following features: Microsoft Network Adapter Multiplexor Protocol“.

It will disable other internet-related items if you click Yes. On the other hand, clicking the No will cause nothing and will take you back to the properties window with disabled multiplexor protocols.

We concluded that it is not possible to enable it manually. Microsoft Network Adapter Multiplexor Protocol works automatically when you create a new connection or combine network adapters.

FAQ – Microsoft Network Adapter Multiplexor Protocol

1. What is the purpose of the Microsoft network adapter multiplexor protocol?

What exactly is the purpose of the Microsoft network adapter multiplexor protocol?

It’s possible that the Microsoft Network Adapter Multiplexor Protocol service is a kernel driver. For the first time, the Protocol is installed by default as part of the physical network adapter initialization.

Within the NIC Teaming, the Microsoft Network Adapter Multiplexor protocol is checked in the teamed network adapter and unchecked in the physical network adapters. For example, if a team has two physical network adapters, the Microsoft Network Adapter Multiplexor protocol is disabled for these two physical network adapters and checked for the teamed adapter.

2. Multiplexor protocol for Microsoft Network Adaptor—– Is it necessary to enable it????

When using several network adapters, this is automatically enabled. This may not be possible unless you’re configuring multiple network adapters as part of a team.

3. Network Adapter Multiplexer Protocol cannot be reinstalled

I’ve got a Windows Server 2016 Essentials touch home server here.

I chose LACP for load balancing because I have an Intel I350 dual-port network adapter.

Last week, I encountered a problem with a limited network connection (which I discovered only since I provided the BD player an equal static IP because the server used DHCP).

While attempting to resolve the issue, I was able to erase the LACP and the Multiplexer Protocol from the network adapter, as I was confident they would be simple to reinstall. Well, that was a mistake. I’m unable to reinstall the Protocol; I can pick it, but pressing Return results in an error message that says something along the lines of “module not found.” It should be there because I can choose it, but it isn’t.

4. Set up the Network Protocol

I removed the Microsoft network adapter multiplexor protocol by accident, and when I try to reinstall it, it says the needed module is missing. I’m attempting to get my Ethernet to function since it claims it can’t connect to the internet because it’s an unnamed network.

5. In Windows Server 2016, the “Microsoft Network Adapter Multiplexor Protocol” cannot be installed.

When I reinstalled the Protocol, I received a similar problem.

The network adapter had to be removed, but that didn’t work.

It’s possible that the Microsoft Network Adapter Multiplexor Protocol service is a kernel driver. The problem could possibly be linked to the system file.

Fortunately, the Protocol is only used in conjunction with NIC Teaming, so it shouldn’t interfere with your ordinary network connection.

You might have seen the option of Microsoft Network Adapter Multiplexor Protocol in your WI-FI-Properties window. The default settings on Windows disable this feature.

This term is very technical. You might have questions like “What is Microsoft Network Adapter Multiplexor Protocol?” If you enable it, what will happen?

We have created this blog post to answer all your questions.

Jennifer Thomas
Jennifer Thomas is the Co-founder and Chief Business Development Officer at Cybers Guards. Prior to that, She was responsible for leading its Cyber Security Practice and Cyber Security Operations Center, which provided managed security services.