[X1C] is it okay to uninstall the WAN miniport driver?

Many of the X1C have the "WAN Miniport (Network monitor) #2 problem" issue, and this seems lead to ocassional wifi drops.
And I have done a bit of researh and find out the solution, which is to uninstall the WAN miniport
I wanna know do I have to install the WAN miniport again??
What is the function of a WAN miniport? Will I lose some function after uninstalling it?

Hi victoria63, welcome to the forums,
both of your posted questions could actually be related according to the first of the following links. The other links may also be of interest to you.
http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/X1-Carbon-WAN-Miniport-Network-Monitor-2-Code-...
http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/X1CT-Solution-Center-reporting-Unknown-devices...
http://forums.lenovo.com/t5/Windows-8/SOLVED-WAN-Miniport-2-yellow-exclamation-mark-in-Device-Manage...
If you haven't already, running Windows Update and Lenovo System Update may possibly solve the situations.
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
Did you find a post helpfull? You can thank the member by clicking on the star to the left awarding them Kudos Please add your type, model number and OS to your signature, it helps to help you. Forum Search Option T430 2347-G7U W8 x64, Yoga 10 HD+, Tablet 1838-2BG, T61p 6460-67G W7 x64, T43p 2668-G2G XP, T23 2647-9LG XP, plus a few more. FYI Unsolicited Personal Messages will be ignored.
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WAN Miniport can't load drivers

Have had a KT4V since last fall and I have three yellow circles with exclamation points on three WAN miniport drivers for PPPOE, PPTP, and L2TP, as displayed in Device Manager. I first saw these when I installed the machine using XP. A reinstall of XP didn?t fix it. Upgrading to SP1 did not make a difference; neither did changing video cards or hard disks. I have the latest 4 in 1 drivers installed yesterday, no difference. This is the KT4V with the built in Ethernet, and that works fine.
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The device manager won?t let me uninstall the WAN miniports,even in safe mode, which would be the first thing I?d normally do. Running SFC doesn't help either.
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[email protected]

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WAN Miniport accidently deleted; unable to reinstall

The core problem is that I am no longer able to connect via RAS/VPN to my company network, it says - Error 651: The modem (or other connecting device) has reported an error. I am 99% sure this is caused by crashed WAN Miniport devices.
What I did: In device manager (network), 3 WAN Miniport (xxx) devices shown exclamation mark. Not sure what caused this, but I assume I made a mistake while making some experiments with Windows 8 Networking. I tried to repair. One of the first hints I found
by googling was to uninstall the WAN Miniport devices completely before reinstall. Trying this I failed, and more googling thrown the answer that I first need to assigned 'wrong' drivers to these devices. I've done this, and finally these devices could be
uninstalled.
But now I fail to reinstall them, whatever I try. I tried e.g.
this but here the Add Hardware wizard doesnt find the missing WAN Miniports. I am stuck. Whatever help I find, at least one of the necessary steps doesnt work.
I depend on this Dialup RAS Connection, it makes my VPN tunnel to my company.
Please help, I have no more ideas...
Thanks, Marc

Hello, is there nobody who can help? No workaround for uninstalling these WAN Miniport devices? Is it necessary at all to uninstall the remaining WAN Miniport devices, or can I continue with the (already killed and missing) 3 WAN Miniport devices?
Please, any help is highly appreciated!
Thanks, Marc
Hi, Me too is facing the exact issue as Marc i have also deleted the following:
WAN minport (IP)
WAN minport (IPv6)
WAN minport (L2tp)
WAN minport (Network Monitor)
WAN minport (PPPoE)
WAN minport (PPTP)
except the fact i am on win7 64 bit os. and my wifi is gone completely and on suing troubleshooter i have got the error of DNS server not found which i am sure due to these deleted miniports. Any help to get these drivers back on would be highly appreciated.
Rgds,
Sum1spl

Win 8 Monthly Update - T430S WAN Miniport Problem

The May 2013 monthly update for Windows 8 leaves a Device Manager error, as well as an error message in Lenovo Solution Center. Four T430S machines receive push updates published by Microsoft every 2nd Tuesday of the month. After this month's push updates, all machines have the same WAN Miniport error in Device Manager.
2 machines were restored to before the May 2013 push updates, and the error went away. Unfortunately, out of the 13 or so updates, the one that appears to be causing the problem is a major update to the OS. However, the push updates do not cause any errors with T61Ps.
Unforutunately, the WAN Miniport cannot be uninstalled. It is part of the network stack. So far, the only way to avoid the problem is to disable Win 8 push updates on T430S machines.
Solved!
Go to Solution.

The T430S machines have Intel Ultimate-N 6300 AGN WLAN cards with 3 antennas.
A few months back, there were intermittitent issues with WLAN connectivity. Oddly, the signal strength was strong, but with intermittent internet access. After r&r (removing and replacing) with a new WLAN card from Lenovo, it did not fix the intermittent WLAN connectivity issues.
The WLAN connectivity issues were isolated to weak wireless N internet access performance from the Intel wireless AGN driver. Changing the wireless N channels at the router improved performance marginally (BTW, N channels have different power requirements that affect performance.) However, internet access was still intermittent.
Wireless N WLAN performance dramatically improved when the router was physically 10-15 feet away at most. Since this was not practical, the best work around was to disconnect the machine from the wireless N network and setup a wireless G network at the router. Since then, the range has been excellent with no intermittent connectivity issues.
So far, machines with KB2836988 have not affected wireless G connectivity and performance. Apparently, if you unhide the devices in Device Manager, KB2836988 created a second WAN Miniport for Network Monitoring #2. The second WAN Miniport is the device with the error. From my earlier post, the only was to get rid of the error is to do a system restore to a point before the May 2013 push updates and manually hide KB2836988.
I plan on doing a system restore on another T430S machine to get rid of the error. This time I am going to try and hide all of the other updates except for KB2836988. I am hoping by isolating the KB2836988 as the first push update, I can get rid of the WAN Miniport error. If all goes well, the other updates will be installed afterwards.

Issue with WAN Miniport when setting up VPN server in Windows 7

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SOLVED! WAN Miniport #2 yellow exclamation mark in Device Manager

This topic is to collect some information, if someone has any, about the WAN miniport #2 virtual device in Windows 8
There are many complaints but so far there has been no resolution to the problem.
Just as a heads up, since it windows doesn't allow you to uninstall it I tried to delete it through registry and lost the ability to see any networks while the hardware itself was recognized and working.
EDIT: The **bleep** thing is out! Had to call excorcist in jk..
Anyway, I want kudos for this, now.
Found the solution following this link: http://oyam.ca/blog/2011/11/windows-miniports.html
FIne gentleman who runs it had a tip waiting for us, summary is below:
To do this, DO NOT edit the registries. There are number of other registry keys that depend on the miniports being present, and it is super easy to completely break the network stack, to a point where the base network card driver won’t work. (If you did this already, let’s hope your system has restore points — you can restore to previous snapshot and try doing it the non-registry way outlined there.) When doing this, take a note of the miniports that you are removing, you’ll need to know this later when reinstalling.
So, to remove each non-working miniport, do the following:
    Right click on the non-working miniport, choose “Update Driver”.
    Choose “Browse my computer”.
    In the next window, choose “Let me pick driver from a list”.
    Uncheck “Show compatible hardware”. From the “Manufacturer” list, choose “Microsoft”, and from the “Network Adapter” list, choose “MAC Bridge Miniport”. (It can be any device the user is allowed to uninstall.) *here I chose the first entry, Generic Broadband device driver.
    Back in the device manager, delete the device that just turned into the “MAC Bridge Miniport” device.
Once done removing the bad miniports, reboot. Don’t skip this, it’s important. Otherwise there is a change things will go bad again.
And it works!!! Rebooted two times just to be sure.
Solved!
Go to Solution.

I'm glad you've found a solution, however, when I go inte the Network Adapter List, I do not have the option of choosing "MAC Bridge Miniport" there is no such miniport. Does anyone have an alternative I can use? Or is there some other way to Solve this problem? I'm using a Lenovo ThinkPad Edge E530.

Modem and WAN miniport, com confusion

Hi everyone! I've been stuggling for 2 days and nights to figure this one out! So tired! I"m on an older hp pavilion a710n desktop and have been using the built in modem on a basic dial in AOL for 11 years. Now for some reason when I connect the network connection jumps right past the modem and does a WAN miniport connection, making a direct connection to the Internet. Unfortunately, the speed of this connection is 10kbps!! Seems to run ok, but can't keep up with the McAfee security! No updates. Modem is showing up ok on computer and AOL dialup, I have slowed it down to 9600 as recommended. Any thoughts? Thanks, guys, for your time and effort. It takes a lot to figure this stuff out!! Have a great week.

Hello, is there nobody who can help? No workaround for uninstalling these WAN Miniport devices? Is it necessary at all to uninstall the remaining WAN Miniport devices, or can I continue with the (already killed and missing) 3 WAN Miniport devices?
Please, any help is highly appreciated!
Thanks, Marc
Hi, Me too is facing the exact issue as Marc i have also deleted the following:
WAN minport (IP)
WAN minport (IPv6)
WAN minport (L2tp)
WAN minport (Network Monitor)
WAN minport (PPPoE)
WAN minport (PPTP)
except the fact i am on win7 64 bit os. and my wifi is gone completely and on suing troubleshooter i have got the error of DNS server not found which i am sure due to these deleted miniports. Any help to get these drivers back on would be highly appreciated.
Rgds,
Sum1spl

W530 Wifi issues and WAN Miniport disabled (Code 31) AHHHH!!!!!!

Hey guys,
This is my 2nd W530. The first one was replaced for the same issues I'm having now.
My wifi is very slow and inconsistent. I'm always having to disconnect and re-connect with my router (brand new router since I thought the old one could be the issue). This has been an issue since I received my new unit.
Yesterday I had a yellow exclamation mark pop up in Lenovo manager and said my network monitor WAN miniport was disabled (code 31). Since that popped up connecting to the wifi is very rare and requires a lot of effort. I'm out of ideas and considering calling Lenovo and having them take this thing back and give me a refund.
Anyone else experienced these issues? I tried windows 8 troubleshooter and it detects the issue but can't fix it. I tried updating the driver and it tells me its up to date and I tried uninstalling it and I'm unable to.

Thanks for that, it's actually exactly what I wanted to read
Again, which WLAN adapter do you have in the system please?
When I read your post yesterday I took a look in my device manager and it was showing exactly the same problem which hadn't been present two days ago. It's something I've been keeping an eye on because I have the Intel Centrino Advanced N-6205 WLAN card which seems to be having problems being reported all over the web.
Trouble shooting to date,
after rolling back my Windows 8 X64 to the 15th May, before running Windows Updates, the WAN miniport problem had gone away. I then started trying to narrow things down by installing / uninstalling various updates and drivers.
At the moment I am at the stage that I can roll back the system to the 15th May, (no problem), and then install through Windows Update "Update for Windows 8 for x64-based Systems (KB2836988)" on it's own and immediately after a restart the WAN miniport problem is there again.
I have as yet been unable to get rid of the error by uninstalling the update, uninstalling / reinstalling drivers and various other softwares which could be a factor, but haven't given up yet.
Any chance you could roll back your system to a point where the error wasn't showing in Device Manager and see if you can replicate what I have experienced by just installing the one update?
Edit; for the record I am using a T430 W8 x64.
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
Did you find a post helpfull? You can thank the member by clicking on the star to the left awarding them Kudos Please add your type, model number and OS to your signature, it helps to help you. Forum Search Option T430 2347-G7U W8 x64, Yoga 10 HD+, Tablet 1838-2BG, T61p 6460-67G W7 x64, T43p 2668-G2G XP, T23 2647-9LG XP, plus a few more. FYI Unsolicited Personal Messages will be ignored.
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WAN Miniport (2) suddenly appearing with yellow triangle icon

Last week I was called to troubleshoot a Lenovo Thinkpad that could not connect to the network. Device manager showed the Realtek NIC, a Centrino wireless adapter, Teredo Tunneling adapter, and six listings for WAN Miniport adapter, all of these items with
the yellow triangle and exclamation point. It was not possible to update the drivers, because no network connections were available. Even a wired connection would not work. Whenever I tried to run the troubleshooter, I got the error that the Diagnostics Policy
Service was not running.
After much googling, I eventually tried uninstalling the network devices and rebooting to have Windows reinstall them. This didn't work, as soon as I tried to use the driver, the yellow triangle came back. Finally I decided to reformat back to factory settings.
After reformatting, I was able to add the laptop back on the network, with both wired and wireless connections working. In Device Manager there were listings for Bluetooth adapters, the LAN adapter and wireless adapter, and a single WAN Miniport adapter.
I disabled the option to allow these devices to turn off the computer.
I was able to browse the network and get online to update software.
After I left to do something else, I came back and the laptop display was off, so I had to hit power to bring it back. I logged in, and the wireless connection had dropped. I was able to reconnect, but that shouldn't have happened - it's unusual behavior.
I went to Device Manager and now there are two WAN miniports, and #1 has the yellow triangle and is not working. #2 is working. Again I went to the power options and disabled the option to allow the adapter to turn off the computer.
Now I am wondering what's going on, and if the problem actually is hardware-related and not driver-related. Why was it working OK yesterday and now I'm getting errors again? Is this possibly a hard drive issue? The laptop is less than 2 years old.
I'd appreciate any advice.

Hi,
Firstly, about "I got the error that the Diagnostics Policy Service was not running.", you could start this service to clear up this message:
1. Type "Services" in the start menu search box, press Enter.
2. In the Services window, navigate to the following one
3. Right click "Start" button to make it running.
The next, about the WAN miniport issue, do the following:
1.Open Device Manager.
2.Right-click the WAN miniport (Network monitor) device, and then click
Update Driver Software.
3.Click Browse my computer for driver software.
4.Click Let me pick from a list of device drivers on my computer.
5.Clear the Show compatible hardware check box. From the list than select something that can be removed for instance Microsoft -> Generic Mobile Broadband Adaptor. and click next.
6. Back in the device manager, delete the device that just turned into the “MAC Bridge Miniport” device.
7. Once done removing the bad miniports, restart the computer.
Finally, check the result.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Twist - Bad Driver for WAN Miniport?

Just picked up a new Twist s230u. Under the Device Manager, there is a yellow exclamation point warning about a bad driver for the WAN miniport. Is this regarding the SIM card slot in the back left behind the SD card slot? Is there a driver update available somewhere? I've run all the Windows updates. I tried searching these forums but did not find a solution. Thanks.
Solved!
Go to Solution.

Hi, RedV
I've seen this issue before and have helped a few users with it. The steps to removing this issue can be found here. For your convenience, the steps are also listed below:
Open the Start menu and type Device Manager into the search box.
Open Device Manager.
Right-click on the WAN miniport device.
Select Update Driver Software...
Select Browse my computer for driver software
Select Let me pick from a list of device drivers on my computer
Uncheck the box Show comptatible devices
Pick any driver from within here. (As long as Windows installs a driver, the problem can be removed. I recommend a Bluetooth driver just for simplicity.)
Click OK at the warnings that are likely to pop up. These are just notifying you that this driver is not compatible with the WAN hardware.
Eventually the driver should install. Once it does, right-click on the device again and select Uninstall.
The problem should now go away and this error will not appear in Device Manager anymore.
Best of luck,
Adam
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution!" This will help the rest of the community with similar issues identify the verified solution and benefit from it.

Lenovo B590 configuration or hardware problems (microphone and WAN miniport)?

Hi,
First message here. :-)
Ok, when I use the integrated microphone, I can barely hear myself. It has always worked like that and I don't know if there's a problem. I uninstalled and installed the drivers, I amplified +20 dB and the output is very low. When I'm trying out different things, if I try to configure speech recognition and read the sentence I can see how the bar oscillates like it recognizes some sound, but the result is too low and it tells me that it couldn't hear a thing.
Also, out of nothing I receive this message that tells me that my WAN miniport is disabled. The Lenovo Solution Center detects this problem but it doesn't fix it, and I can't enable The WAN miniport it in the device administrator, either.
Thank you for your help.
Solved!
Go to Solution.

Hi EXinthenet, welcome to the forums,
regarding the WAN Miniport, it seems that a recent Microsoft update (KB2836988) has caused this to happen on some systems, unfortunately uninstalling the update doesn't solve the problem.
You could do a system restore in Windows to a point before the update was installed and then whan you update hide / exclude the update by right clicking it before updating. More information and an alternative fix can be found in the following threads,
Win 8 Monthly Update - T430S WAN Miniport Problem
SOLVED! WAN Miniport #2 yellow exclamation mark in Device Manager
I would suggest starting another thread for the microphone issue, don't forget to state which operating system version, 32 bit / 64 bit, and sound driver versions you have installed.
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
Did you find a post helpfull? You can thank the member by clicking on the star to the left awarding them Kudos Please add your type, model number and OS to your signature, it helps to help you. Forum Search Option T430 2347-G7U W8 x64, Yoga 10 HD+, Tablet 1838-2BG, T61p 6460-67G W7 x64, T43p 2668-G2G XP, T23 2647-9LG XP, plus a few more. FYI Unsolicited Personal Messages will be ignored.
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WAN MINIPORT ERROR AND TAKES A LONG TIME TO SHUT DOWN

Few days before,my device manager was showing yellow exclamation mark in wan miniport(ikev2),SSTP and another area, which i can't remember.So i searched on forums and use another software to fix this.The link to website is - https://www.vpnhosting.cz/index.php/clanky/wan-miniport-repair-tool-solve-vpn-and-dial-up-error-code-720-and-similar-ppperrors.html
i followed the process but now when i boot my laptop it does not show wan miniport driver initially on device manager .After long hours it shows wan miniport drivers but again with yellow excamation mark.I think it tries to install the driver at the beginning.Now
the problem is, when i shut down it takes a very long time with a huge fan operation noise.Many times it goes in to hibernation state to avoid overheating.Sometimes i have to forcibly shut down using the power button.Now when i start it , it again
does not show wan miniport drivers in device manager.This way the cycle continues and many times my laptop does not get a proper shut down.What do i do? please help me..

Hi,
May I know thw error code displayed in the problematic wan miniport drivers? Code 720 as in the link you post above or other error code?
This link can be helpful for further troubleshooting (please create a restore point before making changs to the system in case any incorrect operations can cause unexpected issue)
Fix Broken Wan miniports
http://community.spiceworks.com/how_to/show/55611-fix-broken-wan-miniports
NOTE
This
response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you.
Microsoft
does not control these sites and has not tested any software or information found on these sites.
Yolanda Zhu
TechNet Community Support

How do I install the Apple device driver on my laptop?

My iPhone 4 is stuck on the "connect to iTunes" screen and won't enter recovery mode after trying to update my phone to iOS 7.0.2. My laptop "can't find a device driver" and iTunes won't detect my phone at all, neither will my laptop. I need help with this problem. I have tried uninstalling the orginal device driver and I can't find a device driver downoad on Apple's website to replace it, so now I have no driver whatsoever. I have "held the home button down for about 15 seconds" whilst the phone was on and again while it was off. Is this a problem many people are having?
Many thanks, Joe

Hi there Joe Foxwell,
I would recommend taking a look at the troubleshooting steps found in the article below.
iOS: Device not recognized in iTunes for Windows
http://support.apple.com/kb/TS1538
-Griff W.

[X1C] is it okay to uninstall the WAN miniport driver?

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