FAQ - CU200 Can not get IP automatically

If for some reason you lose the connection to the network, then of course your system will not be able to find a DHCP server to get an IP address automatically. So, in this situation, Windows will automatically assign an IP address to itself starting with 169.254. This procedure is called Automatic Private Internet Protocol Addressing (APIPA).

Common cause for this to happen is when the DHCP server stops responding when you send a request for an IP address. So usually, the issue resides on your Router or Wireless Access Point side. In some cases, the cause of this issue has also been attributed to Windows itself. If Windows fail to fetch an appropriate IP address in time, acting on its APIPA protocol, it will assign itself the IP.

Follow each method in the listed order, until the issue is resolved.

Method 1: Power Cycle Your Router

A power cycle will do a soft reset, terminate and re-initiate all connections to devices connected to the Router.

1. Turn the Computer that has the issue off.

2. Unplug power from your Router/Wireless Access Point & Modem. Leave it unplugged for a minute and then plug the power back to turn them back on.

3. Power up your computer and now check if the proper IP Address is assigned.

After following this method, if you have other devices connected to this router check them out as well to see what network are they on, if they’re also unable to connect then the issue points to a hardware fault with your router and it will need to be replaced.

Check if the IP is gone. If not, move on to the next solution. You may also check this guide out which has scripted commands to reset network components.

Method 2: Request New IP through CMD

Press the Windows key, type cmd. Right click on cmd in the search results and click Run as Administrator. In the black command prompt window, type the following commands and press Enter after each.

ipconfig /release

ipconfig /renew

Method 3: Check your Router/Wireless Access Point Settings

Log in to your router or modem and make sure that DHCP is enabled.