How to Fix 169.254.X.X –“Invalid IP Config” Issue on Windows

169.254.x.x is a private IP Addressing space reserved by Microsoft which it assigns automatically to your Network Adapter if it cannot get an IP Address from the DHCP Server. Now since it is assigned directly by the Windows itself, the issue could either be with the network adapter or with your router/modem.

In this guide, we will troubleshoot the issue to diagnose the cause and then fix it. Since the issue could be originating from Modem or from within the PC we will start from the PC.

Here are a few methods that will fix this problem. Method 1 solves the problem almost all the time so try Method 1 first. If it doesn’t solve the problem then go to Method 2, 3, or 4.

Method 1: Reboot the PC

1. Hold Windows key and press R
2. Type shutdown /r /f /t 0

OR

3. Press and hold Shift
4. Click Start > Shutdown. Keep the Shift key pressed until your computer restarts

Method 2: IP config renew fix

1. Hold Windows key and press R
2. Type compmgmt.msc then press Enter
3. Select Device Manager > Expand Network Adapters.
4. Right click on Ethernet or Wireless Adapter that has the issue (You can see the exclamation mark or error mark on the left side) then click Uninstall
5. Right click Network Adapters > Scan for Hardware Changes
6. Hold the Windows Key and Press R. Type ncpa.cpl and Click OK. Right Click the Network Adapter in question, and choose Properties -> Uncheck Internet Protocol Version 6 (TCP/IPv6) then click OK.
7. Hold Windows key and Press X and choose Command Prompt (Admin). For windows 7, click Start > type cmd then Right click cmd and choose Run as administrator.
8. In the black command prompt window that opens up, type netsh winsock reset catalog press Enter
9. Type netsh int ip reset reset.log press Enter
10. Type ipconfig /release press Enter
11. Type ipconfig /renew press Enter
12. Restart your computer

Method 3: Unchecking Fast Reboot option (Temporary)

1. Hold Windows Key > Press X (release Windows Key) > Power options for Window 8 and 10. For Windows 7 click Start > Control Panel > Hardware and Sound > Power Options
2. Select Change what the Power buttons do > Change settings that are currently unavailable (if Fast Startup option is greyed out).
3. Uncheck Turn on Fast Startup
4. Click Save Changes
   

Method 4: Restart DNS client

1. Hold the Windows Key and Press R. Type services.msc and Click OK. Scroll down the services tab, and choose DNS Client, Right click on it and choose Restart.

If the issue is still not resolved, please reboot your modem/router, best is to power them off for 5 minutes and then turn them back on.

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