| Event Information | According to Microsoft:
CAUSE:
Your computers network adapter lost connection with the network.
The adapters connection to the network can be lost if you remove a network cable from your network adapter or if you are roaming between wireless access points with a mobile system. Other possible causes include network issues, firewall issues, or a malfunction of the network interface card or its driver.
RESOLUTION:
If your computer is connected to the network by cable, confirm that the cable is plugged in properly. If you have a wireless network connection, confirm that you have a signal and the proper credentials for the wireless network.
If the network connection is working properly, check the following possible causes and take corrective action:- The network is down.
- The firewall on your computer is blocking out network broadcast traffic.
- Your computers network interface card or driver is not functioning correctly.
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According to Microsoft :
Cause :
This event is logged when the system detected that network adaptor is disconnected from network.
Resolution :
Remove and add TCP/IP protocol or reset Winsock catalog
The TCP/IP protocol is not properly installed on the network interface.
To perform this procedure, you must have membership in Administrators , or you must have been delegated the appropriate authority.
To remove the protocol from the network interface and add it again:- Click Control Panel , double-click Network and Sharing Center , and then click Manage network connections .
- Right-click the network interface you want to repair, click Properties , clear the Internet Protocol Version 4 (TCP/IPv4) check box, and then click OK .
- Right-click the same network interface, click Properties , select the Internet Protocol Version 4 (TCP/IPv4) check box, and then click OK .
If the problem persists, reset the Winsock catalog:- Click Start , click All Programs , click Accessories , right-click Command Prompt , and then click Run as administrator .
- Click Continue when prompted by User Account Control, and then provide the administrator password, if requested.
- At the command prompt, type netsh winsock reset , and then press ENTER.
- The output of the netsh winsock reset command should indicate a successful reset.
- Restart the computer to complete the reset of the Winsock catalog.
Verify :
To verify that an IP address is assigned:- At the DHCP-enabled client computer, click Start , click Run , and then type cmd .
- Type ipconfig /all to view lease-status information.
- The output of the ipconfig command should show an IPv4 or IPv6 address marked "preferred."
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