Network Unauthenticated 2 icon showing on Network card, Limited connectivity

Network disconnected automatically and showing "Network Unauthenticated" on the "Local Area Connection"

Follow below steps to get the issue resolve :

Steps: 1

• Go To The services.msc > Right Click on "Network Location Awareness" and Open Properties > in General tab > change Startup Type as "Automatic (Delayed Start)" and Restart the Services
• Follow same procedures for "Network List Services" ( Dependency on above service)

Steps: 2

• Go To the Command Prompt > and type below commands & hit Enter after each and every command

          netsh
          winsock
          reset
Once the winsock reset you Must be Restart the System

Steps: 3

•  Try to Enable/Disabled Network Card

Steps: 4

• Right Click on Network icon and Open Network & sharing center > click on Change Adapter settings > Right Click on Local Area Connection and open Properties > Click on configure button > Select Power Management Tab > and Unchecked Allow the computer to turn off this device to save power (Same for all option available in below)
• Restart the System/Computer

Steps: 5

• Unjoin/Remove the workstation/machine from the Domain then delete All computer account from the Active Directory and rejoin or re-welcome in Domain

Steps: 6

• E.g. - If  the Domain name is "CYBTEST.COM" and you find the name on the Network Card is changed as "CYBTEST.COM 2" then edit and change as "CYBTEST.COM" in Registry as follows.

• Open registry editor using regedit command > click on Edit > Find > type CYBTEST.COM  2
• Find all changed entries and edit as normal "CYBTEST.COM"

     

Steps: 7  ( Change the NIC Dynamic port using batch file or below command line )

• @echo off
  color 02
  netsh int ipv4 show dynamicport tcp
  pause
  echo "Dynamic port WILL SET as starting from 1025 to num=64510"
  pause
  netsh int ipv4 set dynamicport tcp start=1025 num=64510
  pause
  netsh int ipv4 show dynamicport tcp
  pause
  shutdown -r -t 05

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