Network Diagnostic Service won't run, Symantec turned off, yellow triangles by all network devices

We have a Lenovo laptop that suddenly cannot connect to the network (Windows 2008 R2 domain). The o/s is Windows 7 Pro 64 bit. The system tray icon shows that no network connections are available. When I run the troubleshooter, Windows detects that the Network
Diagnostic Service is not running, and when the troubleshooter attempts to fix it, nothing happens.
Looking in Device Manager, I see a Realtek LAN card, a Cisco wireless card, Teredo Tunneling adapter, and 5 WAN miniports. All are showing a yellow triangle. Under Unknown Devices, I have one device with a question mark and 5 with yellow triangles. I tried
uninstalling/reinstalling the network adapters, but it made no difference.
In addition, I got a message yesterday in the Action Center that Symantec Endpoitn Protection and Windows Firewall were both turned off. This made me suspect malware, but a Malwarebytes scan did not turn up anything. I am now trying a scan in Safe mode.
I've googled this extensively and have seen articles about Teredo Tunneling issues and Network Diagnostic Service issues, but I am not sure of the root of my problem. I don't want to try registry edit solutions or uninstall anything else if those solutions
are not my specific issue.
Any help appreciated.

Hello Peg2011,
Have you made any changes before the laptop can’t connect to the network?
Please take the following steps for troubleshooting:
1. Update the network cards drivers from the manufacturer website
2. If you still can’t connect to the network, please run the command ipconfig /all to check if the IP information is right and share us the result.
As this issue occur suddenly, you could try to use the system restore to return your PC's system files and programs to a time when everything was working fine.
For more information about system restore, please take a look at the following article.
http://windows.microsoft.com/en-hk/windows7/products/features/system-restore
Best regards,
Fangzhou CHEN
Fangzhou CHEN
TechNet Community Support

Similar Messages

Network diagnostic tool won't run

Thought I'd run the NDT to see if if could tell me why my upload speed was 25 Mbps on a 75/75 connection. It just says testing in progress and has 4 steps that say not started. Nothing ever changes. There is a mention of a Java applet however I never got prompted for installation of such an item. Is that the issue??
Or is it possibly because the Verizon router isn't the gateway router to the network that the PC is on?

Yes, the issue is apparently Java. More specifically Java and Chrome, according to the Oracle site Chrome won't run Java any more, at least that is what it said when I tried to update Java to 8 v45. Update it in IE and NDT still wouldn't run in Chrome but runs OK in IE.
My upload speed looks even worse today, apparently am now 78/5
The top line of the web 110 detailed analysis is odd - 10Mbps Ethernet Link found
I'm guessing my upload issue is this
This connection is receiver limited 4.14% of the time.
This connection is sender limited 93.26% of the time.
Anybody know what sender limited means?

Ipad won't charge unless turned off

My iPad 2 won't charge unless turned off and in some cases not at all. It does this off and on. Typically, it'll stop charging when turned on and I can turn it off and charge it to over 40% (or so. . . .it varies) and then it will charge the rest of the way while turned on. And then, I can go through long periods --maybe a month-- where it will charge as usual (while on) but then suddenly it will stop charging while on and will only do so when off. This back and forth has gone on for several months. Today it stopped charging even when off. Given history, it might kick in and start charging suddenly but I fear that the battery could run out this time and I'll not be able to charge and restart it. I'm at 20%. I am using the iPad 10W charger and I have a new one so the cord is good and it works to charge my iPhone as well. I have also tried rebooting the system, holding down the home and start button. Anyone have experience with this and a solution?

you can also try the universal troubleshooting step of resetting your iPad. No data is lost so don't worry.
You can reset your iPad by simultaneously pressing and holding the Home and Sleep/Wake buttons until you see the Apple Logo. This can take up to 15 seconds so be patient and don't release the buttons until the logo appears.
Try again to see if the problem persists.

HT5594 After updating to iOS7 on my iPhone4 I cannot enable location services. How do I enable location services? I have tried turning off restrictions but that did not work.

After updating to iOS7 on my iPhone 4 I cannot enable location services. How do I enable location services? I have tried turning off restrictions but that did not work.

I finally just resolved this after not being able to enable location services since upagrading to iOS 7. Posting the solution here 'cause I couldn't find it anywhere else.
I enabled Restrictions under Settings > General > Restrictions and created a passcode (I'm not sure if this was part of the solution, but it wasn't enabled for me by default.)
In Restrictions, under Privacy, Location Services was set to "Allow Changes" (This still didn't solve the issue of the greyed-out Location Services switch though - I still couldn't turn it on.)
Also in Restrictions, I also switched "Find My Friends" to "Allow Changes"
Once I did step 3, the switch under Settings > Privacy > Location Services was no longer greyed out and could be switched on.
Hope this helps!

Hello everyone...I got my very first macbook pro just today and i have a problem deleting the "test" user account. if i can't delete it, the system won't let me turn off the system. I don't know what to do! HELP!!!!

hello everyone...I got my very first macbook pro just today and i have a problem deleting the "test" user account. if i can't delete it, the system won't let me turn off the system. I don't know what to do! HELP!!!!

Have you created another admin user? Go to system preferences click users and click the + to add a user; if you haven't already. Once you have another admin user other then the "test" user make sure you're signed out of the test user account. Sign in with the alternate ADMIN USER that you just created or had created already and go back to SYSTEM PREFERENCES and click the same USERS icon near the bottom. Now select the TEST user and click the - sign. This should prompt you if your sure you want to delete the user account. And your done.
New User created and Test User deleted... I hope this helps.

I have an iPhone 5 and lately the battery won't last, it turns off at 20%, what could it be?

I have an iPhone 5 and lately the battery won't last, it turns off at 20%, what could it be? I have to recharge 3 times per day

I heard from an apple specilist once that it is good to let your iPhone die atleast once a month. My iPhone 5 battery lasts all day if I charge it before I go to bed. Try not using your iPhone when it is charging. If you don't notice a difference soon, consult with the apple store

Turn off icon preview on all folders?

Looking for a good way to turn off icon previews on all folders, especially on a networked drive.
If I open a folder and choose View > Show View Options, I can turn off the icon previews for that folder, but the others remain unchanged. (Even if I push the use as defaults button)
Is there a script to command that I can run to change this on all folders recursively?

Thanks!!! I had been looking for like 25mins before i luckily ran into this thread!

Help turning off feature that opens all pages and numbers docs.

How can I turn off feature that opens all numbers and pages documents each time I open the respective program?

What version of OS X are you using? That information will help in providing a specific solution.
If you close all documents before quitting Numbers or Pages, you won't have them reopening when you launch the app again. You can quickly close all open windows in an application by typing ⌘ ⌥ W (Command + Option + W) or hold down the Option/alt key while clicking the red close button.
Other things you can do to turn off this resume feature:
In Lion, Mountain Lion & Mavericks you can set System Preferences > General to close windows when quitting an application.
Try Mountain Tweaks The option to turn off resume is at the bottom of the left-hand column under Lion. This solution does not work in Mavericks.

My IPod Touch Froze, It will not turn off or move at all. Help me please?

I was using my Ipod Touch the other day and it was fine...It just froze right when I was using it. I was on the home page and it froze and it won't turn off or move at all it is just un-responsive and I don't know what to do. Please help me!

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

I know the iphone 4s can turn off the vibrate for all sounds, but is there a way to keep the vibration on for just phone calls (with the ringtone also on) but off for everything else?

I know the iphone 4s can turn off the vibrate for all sounds, but is there a way to keep the vibration on for just phone calls (with the ringtone) but off for everything else?

Short answer: No. Long answer: Nope
http://manuals.info.apple.com/en_US/iphone_user_guide.pdf
WYSIWYG No hidden settings.
If you want to suggest this to Apple:
http://www.apple.com/feedback/iphone.html
Message was edited by: modular747

My Ipad Air turns off on its own all the time. Why?

My Ipad Air turns off on its own all the time. Why?

Try a restore. If that does not work, you probably have a hardware issue.
Basic troubleshooting steps
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101

TRIED TO DOWNLOAD SOFTWARE ios7.1.2 TO MY IPAD. iPAD FROZE ON THE APPLE PICTURE AND WONT TURN OFF OR RESPOND AT ALL.

TRIED TO DOWNLOAD SOFTWARE ios7.1.2 TO MY IPAD. iPAD FROZE ON THE APPLE PICTURE AND WONT TURN OFF OR RESPOND AT ALL. IPAD MAY NEED MORE FREE MEMORY FOR THE NEW SOFTWARE BUT HOW DO I FREE UP MEMORY IF THE IPAD IS FROZEN. CAN THIS BE DONE ON iTUNES OR THE APPLE SITE?

Took my iPad to the Apple store today and they were able to unfreeze it with a simple forced reset. This is done by pressing the Off button at the same time as you press the button on the front and hold for about 20 seconds. The new software had successfully installed and the iPad had frozen when it was starting up again after install. Not sure why this simple process can't be part of a FAQ page on the Apple site.

New iPad Air 2 with a persisting blank screen. Support site suggests a restore after turning off 'Find my iPhone' on the device. How can I do this with a blank screen?

New iPad Air 2 (December 2014) with a persisting blank screen. Support site suggests a restore after turning off 'Find my iPhone' on the device. How can I do this with a blank screen?

Thanks JimHdk,
After a little more searching across various online resources I was able to cure it by holding down the home button and the on/off button for 10 seconds to restart it and it all came back with a clear screen.

Trying to restore my iPad2 but it says "turn off Find my iPad" on your device.How its possible since my iPad is in Safe Mode

trying to restore my iPad 2 but it says "turn off Find my iPad" on your device.
How its possible to turn it off since my iPad is in Safe Mode

What do you mean by 'safe mode', do you mean that it's in recovery mode ? You should be able to log into your account on http://www.icloud.com and remove the iPad from the Find My iPhone section of your account

I recently bought a Samsung Galaxy s5 and cannot receive iMessages from iphones, I have deleted my apple id, turned off imessage, turned off spam messages on my android device, wasted 35 minutes on the phone to Apple's 'Support' has anyone got any tips?

I recently bought a Samsung Galaxy s5 and cannot receive iMessages from iphones, I have deleted my apple id, turned off imessage, turned off spam messages on my android device, wasted 35 minutes on the phone to Apple's 'Support' has anyone got any tips?

Hi,
Do you mean you are not getting SMS text messages now ?
If so start here
Follow the Account management options until you are offered and email contact.
Explain the issue via email as only someone in Support can now remove your iPhone Number from iMessages if it has not "de-registered" itself correctly.
8:28 pm Wednesday; May 7, 2014
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Network Diagnostic Service won't run, Symantec turned off, yellow triangles by all network devices

Similar Messages

Maybe you are looking for