Then a few days ago it quit working, Device Manager tells me the device is Unknown, and I have a network adapter called Microsoft Tun Miniport Adapter 2 with a yellow exclamation point, with error code The first one will be the one with the plain name, and the rest of them will be with sequential number 2, 3, etc. I am at my wit’s end here Went to Toshiba and downloaded the Real Tek Driver pkg and still no start! Let us know if this resolves your issues.

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You’ll see 5 categories so highlight the one you are going to work on and then click on File and Export Registry File Put it on your desktop when it asks for a location. I was not successful but it made me think to go to Intel downloads which has a free download to identify which driver package I am using and which updates were available.

Well sometimes you just gotta laugh so you don’t cry! Microsoft Tun Miniport Adapter ?!?!? This thread is locked.

Below is sample of my first: I have had the same problem and really don’t know why? DOes anyone know how to resolve this issue? This site in other languages x.

Also adaapter note, the ONLY recommended place to get drivers for a laptop, is the manufacturer as their hardware is almost always custom.

Microsoft Tun Miniport Adapter #2…?!?!?

I received a message in device manager from Microsoft stating the old driver’s memory was still on my computer which prevented the computer moniport starting up the new drivers but I could not locate the old drivers because I had deleted them, I thought? As of yesterday no answers I went to Microsoft and followed their advice and downloaded Microsoft Fix It. Do you already have an account?


I will research a bit more, and post back again if I find the solution. Also, I have seen guides for this process on other sites, but i just don’t trust them the way I do majorgeeks I have a feeling I will have to end mkcrosoft buying a new Ethernet but I am going to try Toshiba one last time!

Try changing the channel on your router. Those sort of bugs are very annoying. Open Control Panel, double-click Network Connections. You may need to reboot.

The time now is In the Value data box, type 1, and then click OK. I like this idea much better than the ones I found whilst researching the problem By silencio in forum Networking.

[SOLVED] Installed new TUN miniport adapter #2, driver but cannot gt to start – Tech Support Forum

Then, you can restore the registry if a problem occurs. If you are prompted for an administrator password or for confirmation, type your password, or click Continue. You may have to register before you can post: I have been to Device Manager and checked updates and disabled and enabled and checked compatibility and Microsoft says its good!!

I will try with firewall off, safemode etc. Don’t know if what I did will work for everybody, so be careful, all I know it worked for me. Click Yes to restart your computer.

Device Manager error for Microsoft Tun Miniport Adapter under Network Adapters – Lenovo Community

Right click on your network. I have axapter problem all of the sudden that keeps killing my connection and making my laptop search for network again.


The first one will be the one with the plain name, and the rest of them will be with sequential number 2, 3, etc. As for Realtek, they aren’t as bad as you have read.

New Drivers