Problem sa mrežnom karticom na Windows 8 II deo

Windows 8 has a built-in administrator tool, Network Shell(Netsh), that allows you to configure and monitor network adapters on your Windows 8 computer. Netsh can completely reset your network adapter back to it's default state. It can also reset the Windows Firewall in Windows 8 too. All you need is a Command Prompt with administrator privileges.

How to open a Command Prompt with administrator privileges in Windows 8

To use Netsh, you will need to open a Command Prompt with administrator privileges. There are a few of ways to do this:

Using a mouse
1. Go to the Start menu.
2. Right click the Start menu background to bring up the app commands.
3. Select 'All apps'.
4. Right click 'Command Prompt' tile to bring up the app commands.
5. Select 'Run as administrator'. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Using a keyboard
1. Go to the Start menu
2. Press the Windows logo key Win + Z to open the app commands.
3. Press Enter to select 'All apps'.
4. Use the arrow keys to navigate to the 'Command Prompt' tile.
5. Press the Application key  to bring up the app commands.
6. Use the arrow keys to navigate to 'Run as administrator' and press Enter. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Using touch
1. Go to the Start menu.
2. Swipe up from the bottom of the Start menu to bring up the app commands.
3. Select 'All apps'.
4. Scroll to the 'Command Prompt' tile and press and hold it to bring up the app commands.
5. Select 'Run as administrator'. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Netsh commands for resetting your network adapter in Windows 8

The following is a list of the Netsh commands you can use at a Command Prompt with administrator privileges to reset your network adapter in Windows 8.

netsh advfirewall resetRestores the Windows Firewall with Advanced Security policy to the default policy. The current active policy can be optionally exported to a specified file. In a Group Policy object, this command returns all settings to not configured and deletes all connection security and firewall rules.

netsh branchcache resetResets the BranchCache service. Flushes the local cache. Every configuration parameter of BranchCache will be reset to its default value.

netsh int ip resetResets TCP/IP and related components to a clean state.

netsh int ipv6 resetResets IPv6 configuration state.

netsh winsock resetResets Winsock Catalog to a clean state. All Winsock Layered Service Providers which were previously installed must be reinstalled. This command does not affect Winsock Name Space Provider entries.


https://www.thewindowsclub.com/how-to-fix-network-internet-connection-problems-in-windows

Type the following commands in Run box and hit Enter to open the required Troubleshooters directly:

To open Internet Connections Troubleshooter:

msdt.exe -id NetworkDiagnosticsWeb

To open the Incoming Connections Troubleshooter

msdt.exe -id NetworkDiagnosticsInbound

To open the Network Adapter Troubleshooter:

msdt.exe -id NetworkDiagnosticsNetworkAdapter

Reset TCP/IP using NetShell utility

You can reset Reset Internet Protocol to its default state using the NetShell or netsh utility.

To do so, open command prompt, type the following and hit Enter:

netsh int ip reset c:\temp\resettcpip.txt

netsh winsock reset c:\temp\winsocklog.txt. 

rem Proveri C:\Windows\System32\drivers\etc

netsh advfirewall reset

Reset Internet Explorer Settings

To reset Internet Explorer Settings to default, open IE > Tools > Internet Options > Advanced tab > Click Reset > Close >OK. Once this is done restart Internet Explorer. But before you use the reset button, there are a few things you should know.

https://www.geeksinphoenix.com/blog/post/2012/09/16/Resetting-your-network-adapter-in-Windows-8.aspx