Restart-Net Adapter

Restarts a network adapter by disabling and then re-enabling the network adapter.

Syntax

Description

The Restart-NetAdapter cmdlet restarts a network adapter by disabling and then re-enabling the network adapter. This may be needed for certain properties to take effect in a physical network adapter or to put the network adapter into a known state.

Examples

Example 1: Restart the specified network adapter

This command restarts the network adapter named Ethernet 2.

Parameters

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShellВ® background jobs, see about_Jobs.

Type:	SwitchParameter
Position:	Named
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

Type:	CimSession [ ]
Aliases:	Session
Position:	Named
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Prompts you for confirmation before running the cmdlet.

Type:	SwitchParameter
Aliases:	cf
Position:	Named
Default value:	False
Accept pipeline input:	False
Accept wildcard characters:	False

Indicates that the cmdlet includes both visible and hidden network adapters in the operation. By default only visible network adapters are included. If a wildcard character is used in identifying a network adapter and this parameter has been specified, then the wildcard string is matched against both hidden and visible network adapters.

Type:	SwitchParameter
Position:	Named
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.

Type:	CimInstance [ ]
Position:	Named
Default value:	None
Accept pipeline input:	True
Accept wildcard characters:	False

Specifies an array of network adapter interface descriptions. For a physical network adapter this is typically the name of the vendor of the network adapter followed by a part number and description, such as Contoso 12345 Gigabit Network Device .

Type:	String [ ]
Aliases:	ifDesc
Position:	Named
Default value:	None
Accept pipeline input:	True
Accept wildcard characters:	False

Specifies an array of network adapter names.

Type:	String [ ]
Aliases:	ifAlias, InterfaceAlias
Position:	0
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.

Type:	SwitchParameter
Position:	Named
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShellВ® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

Type:	Int32
Position:	Named
Default value:	None
Accept pipeline input:	False
Accept wildcard characters:	False

Shows what would happen if the cmdlet runs. The cmdlet is not run.

I need to restart computer for internet to work

Replies (26) 

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1. Did you make any software or hardware changes to the computer prior to the issue?
2. Which antivirus program is installed on the computer?

This issue might occur if the drivers for the network card is not updated. I would suggest you to try all the steps from the following link:

Keep us updated on the status of the issue.

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Make sure that the machine if virus/pest free, run a Malwarebytes and a TDSSKiller scan.

Are you using a third party firewall?

Look in the Event Log to see if anything relevant is recorded in the system log.

1- Run these commands at an elevated (Run as administrator) command prompt:

When the machine cannot connect to the internet issue this command:

ipconfig /all >c:\ipcon.txt

2- After you run the command reboot the computer and then immediately issue these commands
at an elevated command prompt:

ipconfig /all >>c:\ipcon.txt
c:\ipcon.txt

Note the double redirector (>>) in the second ipconfig command, this appends the output of the command to the already existing file created when you ran the first command.

Copy and paste the contents of the ipcon.txt file to your next post.

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What happens exactly when you try to go on the internet? What kind of error message are you getting? Is the machine always on? Or does it go into sleep or hibernation before this happens? Go in the network adapter’s properties and look at the power management options and make sure that the adapter is not being turned off to save power.

Look in the Event Log for possible clues, see if there are relevant events being logged. Make sure that the DHCP Client service is working, set it to start automatically.

Instead of rebooting next time run these commands at an elevated command, prompt pressing after each:

ipconfig /release
ipconfig /renew

We would need to see both the working and non working ipconfig results to know more.

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Restarting Windows from within a .NET application

How could I restart or shutdown Windows using the .NET framework?

8 Answers 8

The following code will execute the shutdown command from the shell:

I don’t know a pure .NET way to do it. Your options include:

• P/Invoke the ExitWindowsEx Win32 function
• Use Process.Start to run shutdown.exe as already suggested.

Here is P/Invoke way:

The best way I saw:

Also there are few WinAPI ways..

You can use WMI, with LINQ to smooth over its rough spots.

check this aticle.. that gives the answers for ur question

If you don’t mind using the WinAPI, you could call the ExitWindows function, in user32.dll. Here’s an article telling you all about it:
http://www.eggheadcafe.com/tutorials/aspnet/e5ef4e3e-6f42-4b9b-8834-04366ce32c96/net-lock-logoff-reboot.aspx

Not the answer you’re looking for? Browse other questions tagged c# .net winforms or ask your own question.

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How do I shutdown, restart, or log off Windows via a bat file?

I’ve been using Remote Desktop Connection to get into a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart.

How do I control my computer’s power state through the command line?

10 Answers 10

The most common ways to use the shutdown command are:

• shutdown -s — Shuts down.
• shutdown -r — Restarts.
• shutdown -l — Logs off.

shutdown -h — Hibernates.

Note: There is a common pitfall wherein users think -h means «help» (which it does for every other command-line program. except shutdown.exe , where it means «hibernate»). They then run shutdown -h and accidentally turn off their computers. Watch out for that.

shutdown -i — «Interactive mode». Instead of performing an action, it displays a GUI dialog.

shutdown -a — Aborts a previous shutdown command.

The commands above can be combined with these additional options:

• -f — Forces programs to exit. Prevents the shutdown process from getting stuck.
• -t — Sets the time until shutdown. Use -t 0 to shutdown immediately.
• -c — Adds a shutdown message. The message will end up in the Event Log.

-y — Forces a «yes» answer to all shutdown queries.

Note: This option is not documented in any official documentation. It was discovered by these StackOverflow users.

I want to make sure some other really good answers are also mentioned along with this one. Here they are in no particular order.

How to restart Microsoft Windows

Restarting your computer is necessary for many common tasks, including installing new software and performing Windows Updates. This page contains multiple methods for restarting Windows. To proceed, select the method you would like to use from the list below or read through each section individually.

If the computer is frozen or the keyboard and mouse do not work, press and hold down the power button until the computer turns off. Once the computer is off, you can turn the computer back on to restart the computer.

If the computer has a blue screen or another error, try the Ctrl + Alt + Del shortcut method of rebooting.

Restarting from the Windows desktop

In any version of Windows, navigate to the desktop and press Alt + F4 on your keyboard. Doing so brings up a menu similar to the one displayed below. Click the down arrow for the drop-down list, select Restart, and click OK.

Restarting through the Start menu

Windows 10

The Start menu returns in Windows 10, allowing users to easily access the power options again.

1. Click Start in the lower-left corner of the screen.
2. Click the Power option.
3. In the Power menu, select the Restart option.

Windows 8 and 8.1

Neither of these versions of Windows has the Start menu. However, with the 8.1 update, Microsoft added the power options button to the upper-right corner of the Start screen that allows users to restart their computer quickly. Click the power options icon (squared in red in the image below) and select Restart from the drop-down menu that appears.

Windows Vista and 7

In both Windows Vista and Windows 7, users may restart their computer through the Start menu using the following steps:

1. Click Start in the lower-left corner of the Windows desktop.
2. Locate and click the right arrow (shown below) next to the Shut down button.
3. Select Restart from the menu that appears.

Windows XP and prior versions

1. Click Start in the lower-left corner of the screen.
2. Click the Shut Down button.
3. Select Restart in the drop-down menu that appears.
4. Click OK.

Using Ctrl+Alt+Delete to restart

If you press the Ctrl + Alt + Del keys on your keyboard simultaneously, it brings up an administrative menu. This menu differs between versions of Windows, but each one allows users access to the Restart function. Instructions for each version are shown in the following sections.

If the computer has a blue screen or another error, try the Ctrl + Alt + Del method of rebooting.

Windows 10

In Windows 10, pressing Ctrl + Alt + Del takes you to the Windows lock screen. To restart Windows:

1. Locate and click the power icon in the lower-right corner of the lock screen. It should be the icon furthest to the right.
2. Select Restart from the menu that appears.

Windows 8

Users of the Windows 8 will be taken to the Windows lock screen upon pushing Ctrl + Alt + Del . To restart Windows:

1. Locate and click the black power button in the lower-right corner of the screen.
2. Select Restart from the menu that appears.

Windows Vista and 7

In Windows Vista and 7, pressing Ctrl + Alt + Del takes users to the Windows lock screen containing several options. In the lower-right corner, there is a red button with an arrow next to it. Clicking this button opens a list of shutdown options, as you can see in the image. To restart your computer using this menu:

1. Click the red arrow to open the menu.
2. Select Restart to reboot your machine.

Windows XP and prior

In Windows XP and earlier, Ctrl + Alt + Del brings up the Windows Security screen. To restart:

1. Click the Shut Down button.
2. In the new window that appears, click the down arrow and select Restart from the drop-down menu.
3. Click OK.

Using the Windows command line

You can shut down or restart a Windows computer using the Windows command prompt by following the steps below.

1. Open the Windows Command Prompt.
2. To shut down Windows, type shutdown -s and press Enter .
3. To restart Windows, type shutdown -r and press Enter .

If you are accessing Windows on a computer through a remote desktop connection and execute the shutdown or restart command, the remote desktop connection will be terminated. If you executed the restart command, you can reconnect to that computer once it has restarted. If you executed the shutdown command, you can’t reconnect to and start up that computer remotely.

How to reboot from an error message

If the computer encounters an error, you can reboot or restart the computer by pressing the Ctrl + Alt + Del keys all at the same time. If these keys do not work, you can also perform the physical restart mentioned below.

Physical restart with button on computer

You can use the computer’s power button to restart. Press the power button once and wait for the computer to shut down. Press the power button again to turn the computer back on.

If your computer is frozen or does not turn off, press and hold the power button for five seconds to shut the computer off. This action is known as a hard reset and should only be done if all of the above options do not work.

Some computers also have a reset button next to or below the power button.