How to fix “Invalid GW_* command. [ERROR_INVALID_GW_COMMAND (0x5A3)]” – Error Code 1443


Error Code 1443

Error code Error Code 1443 is a common Windows issue that typically arises from “Invalid GW_* command. [ERROR_INVALID_GW_COMMAND (0x5A3)]”.


This article aims to resolve an issue described as: “Invalid GW_* command. [ERROR_INVALID_GW_COMMAND (0x5A3)]” associated with Error Code 1443. Understanding the cause and implementing the fixes provided here can help restore your system’s optimal performance.

Identifying the Problem

Error Code 1443 occurs when an invalid GW_* command is issued by an application or process in Windows.
Symptoms include:

  • Unable to establish network connections
  • Network-related operations failing unexpectedly
  • Networking applications experiencing issues

Common Fixes

Method 1: Clean and Reset TCP/IP Stack

  1. Click Start, type “cmd” and run Command Prompt with administrative privileges.
  2. Run these commands in sequence, pressing Enter after each one:
  3. netsh winsock reset
  4. netsh int ip reset
  5. ipconfig /release
  6. ipconfig /renew
  7. ipconfig /flushdns

Method 2: Reinstall Network Adapter Drivers

  1. Press Windows Key + X and select Device Manager.
  2. Expand Network adapters.
  3. Right-click on your network adapter and select Uninstall device.
  4. Confirm the uninstallation and restart your computer.

Method 3: Disable and Re-enable Networking Devices

  1. In the Windows Control Panel, go to Network and Internet > Network Connections.
  2. Right-click on your network adapter and select Disable.
  3. Wait a few seconds and right-click again to select Enable.

Advanced Troubleshooting

Method 4: Repair Registry Permissions

  1. Open Registry Editor by running “regedit” from the Run dialog box (Windows Key + R).
  2. Navigate to the following registry key:
  3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NetCfg
  4. Right-click on the NetCfg key and select Permissions.
  5. Click on the Advanced button and navigate to the Owner tab.
  6. Select the Administrators group and click OK.
  7. Grant the Administrators group Full Control permissions.

Method 5: Check for Malware or Viruses

Run a thorough malware and virus scan using a reputable antivirus software to eliminate any potential malware that may be causing the issue.


The solutions provided here should resolve Error Code 1443. By following these steps, you can restore your system’s networking functionality and ensure optimal performance. To minimize the recurrence of this error in the future, keep your system updated with the latest patches and security measures, and avoid downloading or installing software from untrustworthy sources.