Chronic problem "Ethernet 3 does not have valid ip configuration"

[Jerry Brown]

I have a Asus i5 laptop. It has Realtek PCIe GBE network adapter. I only use WiFi to connect. Once everyday a perfectly good connection will go bad. I will loose my connection to the router. When I try to reconnect, I get the error message that "Cannot connect ....
When I run "Trouble shoot problems" I get the following error messages.

"Ethernet 3 does not have valid ip configuration"
"Ethernet 2 does not have valid ip configuration"

I have tried all option to reset that are available online, the only one that works is resetting winsock and int ip through cmd and restart computer.
Restarting the computer is a huge problem. The problem started about 4 weeks ago.
I have updated windows 10 and just now installed new realtek drivers. By the way if you go to realtek website, it is absolutely third rate at best. Use google to find your driver on realtek website.

 

[Regedit32]

Hi Jerry,

Welcome to the Forum.


There are a number of methods you can try on the Computer side - and from your post it sounds like you have all ready done that, but just in case, here are those methods:

• Option 1

You can try resetting the TCP/IP settings via an elevated Command Prompt

In your search field type command then right-click on Command Prompt and select Run as administrator

Click Yes to the UAC prompt

In the Administrator: Command Prompt console type or copy & paste the following:

netsh winsock reset

Press Enter key

Now, type or copy & paste the following:

netsh int ip reset

Press Enter key

Type exit then press Enter key

Restart the computer​

• Option 2

You could try disabling, then re-enabling the Network Interface Card

Right-click on Start and select Run

In the Run dialog type NCPA.CPL then click OK

Right-click on your Wi-Fi connection and select Disable

Wait for a minute then right-click on the Wi-Fi connection again and select Enable

Wait for another minute

Close the Control Panel

In your search field type command then right-click on Command Prompt and select Run as administrator

Click yes to the UAC prompt

In the Administrator: Command Prompt console type or copy & paste the following:

ipconfig /release

Press Enter key

Next, type or copy & paste the following:

ipconfig /flushdns

Press Enter key

Next, type or copy & paste the following:

ipconfig /renew

Press Enter key

Type exit then press Enter key

Restart the computer​

• Option 3

You could review your TCP/IPv4 settings and change if necessary

Right-click on Start and select Run

In the Run dialog type NCPA.CPL then click OK

Right-click on your Wi-Fi connection and select Properties

Left-click once on Internet Protocol Version 4 (TCP/IPv4) so that it is highlighted

Click the Properties button

Check the following two choices and checked

Obtain an IP address automatically

Obtain DNS server address automatically

If you have to change settings to get either of the above checked, then click OK, otherwise just click Cancel​

Click OK​

Close the Control Panel

Restart computer

• Option 4

You could try uninstalling the device for your Network adapter then restart computer to allow it to be re-detected.

Right-click on Start and select Device Manager

Expand the Network adapters

Right-click on your Wireless adapter and select Uninstall device

Restart the computer to allow it to be redetected
​

• Option 5

Re-install the current drivers for your Network adapters or Update them

From the sounds of it you have all ready done this, and are looking at an update of the drivers.​

Unfortunately, all these methods require a restart of the computer as you will have discovered.


Other things you could investigate though:

• Turn off your router
• Wait one minute then turn it back on

• Check whether there is any firmware updates for your router

• Contact your ISP and ask them to do an internal diagnostic test. They may discover the issue, or at worse offer to replace your router.

​