Windows 10: Cant connect to internet after KB5031356 update

Question

Windows 10: Cant connect to internet after KB5031356 update

Mark Dalgliesh 5

I'm running windows 10, and have not been able to connect to internet since quality update KB5031356 was automatically installed yesterday. Internet was working fine immediately before the update, and has not worked since. I tried restarting computer and router. Wifi and internet works fine on other devices. I can connect to wifi and ping router fine, but no access to internet. Windows troubleshooter reports DNS server not responding. If i connect on ethernet instead, same thing - connects to router, but no internet access and troubleshooter reports DNS server not responding. Ipv4 and ipv6 properies set to select DNS automatically. I have tried uninstalling KB5031356, but it fails to uninstall. My network card drivers are up to date. Any ideas?

Krasimir Rangelov 240 Reputation points

2023-10-28T04:37:04.2233333+00:00
Please try to ping some public services, for example Googles DNS Server:

IPv4: 8.8.8.8

IPv4: 8.8.4.4

You could try to delete your cached ARP table on your machine:
Run the command with elevated command prompt:

arp -d

If you're able to connect to the internet through some other device in your network, I suggest you to check your adapter if DHCP is assigning DNS Servers for name resolution.

You could test some commands like:

ipconfig /release - To release the IP address assigned from the NIC.

ipconfig /flushdns - To remove the DNS cache on the machine.

ipconfig /renew - To request new IP address from DHCP.

You could do some additional stuff:

netsh int ip reset - That resets your OS IP Stack

netsh winsock reset - That will undo your configurations made to the winsock catalog. That will reset the wsock32.dll file back to the default settings.

If you proceed with those two commands kindly restart your machine.

It's also not a bad idea to check if the following services are in a running state:

DNS Client

Network Connections

Network List Service

Network Location Awareness

Network Store Interface Service

IP Helper

DHCP Client

Before uninstalling any updates, kindly check if you can initiate any internet connectivity through mobile hotspot or different network outside your home.

If none of that works, then I suggest you to listen to Lei Tao to roll-back /uninstall that update from your machine/

7 answers

Your answer

Krasimir Rangelov 240 Reputation points

2023-10-28T04:37:04.2233333+00:00

Please try to ping some public services, for example Googles DNS Server:

IPv4: 8.8.8.8

IPv4: 8.8.4.4

You could try to delete your cached ARP table on your machine:
Run the command with elevated command prompt:

arp -d

If you're able to connect to the internet through some other device in your network, I suggest you to check your adapter if DHCP is assigning DNS Servers for name resolution.

You could test some commands like:

ipconfig /release - To release the IP address assigned from the NIC.

ipconfig /flushdns - To remove the DNS cache on the machine.

ipconfig /renew - To request new IP address from DHCP.

You could do some additional stuff:

netsh int ip reset - That resets your OS IP Stack

netsh winsock reset - That will undo your configurations made to the winsock catalog. That will reset the wsock32.dll file back to the default settings.

If you proceed with those two commands kindly restart your machine.

It's also not a bad idea to check if the following services are in a running state:

DNS Client

Network Connections

Network List Service

Network Location Awareness

Network Store Interface Service

IP Helper

DHCP Client

Before uninstalling any updates, kindly check if you can initiate any internet connectivity through mobile hotspot or different network outside your home.

If none of that works, then I suggest you to listen to Lei Tao to roll-back /uninstall that update from your machine/

Answer 1

Amaury Six 5

I struggled for so many hours that I have to post what worked for me: in network adaptor properties, just uncheck "Network LightWeight Filter"

Vít Čech 0 Reputation points

2023-11-20T22:44:55.74+00:00

Yes! Disabling Light weight filter in adaptor properties worked! Thank you. I have been trying thing things for weeks now.

Answer 2

Hi @Mark Dalgliesh

I’m sorry to hear that you are having trouble connecting to the internet after installing the KB5031356 update. The update may cause DNS errors or conflicts that prevent internet access. Here are some possible solutions that you can try:

Flush the DNS cache and update the IP address. You can open the command prompt as an administrator and run the following commands:

ipconfig /flushdns

ipconfig /renew

Then close the command prompt and try browsing the web.

2.Change your DNS server settings to use a different DNS provider, such as Google DNS or OpenDNS. You can do this by going to Settings > Network and Internet > to change adapter options. Then right-click Network Adapter and select Properties. Double-click Internet Protocol version 4 (TCP/IPv4) and select Use the following DNS server addresses. For Google DNS, enter 8.8.8.8 as the preferred DNS server and 8.8.4.4 as the alternate DNS server, or for OpenDNS, enter 208.67.222.222 as the preferred DNS server and 208.67.220.220 as the alternate DNS server. Click OK and close the window.

3.Uninstall KB5031356 and see if the issue is resolved. This update can be removed by selecting View installed updates in the Programs and Features Control Panel.

If none of them work, you may need to contact your internet service provider or Microsoft support for further assistance.

Kind regards,

Lei

Mark Dalgliesh 5 Reputation points

2023-10-27T14:07:59.6+00:00

Thanks for your help Lei. I've tried all these steps already with no success. Uninstalling the update fails. I accidentally double posted this question here: https://answers.microsoft.com/en-us/windows/forum/all/cant-connect-to-internet-after-kb5031356-update/9c5dc39c-815c-476c-afb9-f6ee6f204430

Answer 3

Anonymous

What's the result of

ipconfig /all
tracert 8.8.8.8

Anonymous

2023-10-27T17:27:24.4266667+00:00

Just checking if there's any progress or updates?

--please don't forget to close up the thread here by marking answer if the reply is helpful--
Mark Dalgliesh 5 Reputation points

2023-10-28T02:39:27.1066667+00:00

Ipconfig /all used to show connection to wifi and list an ip address, but now its not showing any connection. Tracert 8.8.8.8 result reads "1 Transmit error: code 1231.

Answer 4

Anonymous

Try connecting to a different network. If same result then it sounds like either the hardware failed or some sort of driver corruption. Might check Device Manager for clues. Also check the pc manufacturer's site about diagnostics tools for your hardware.

--please don't forget to close up the thread here by marking answer if the reply is helpful--

Answer 5

FieQ 0

It happened to me too. Whenever Windows Security Update version KB5031356 is updated, all internet access via wifi or Local Area Network (LAN) does not work. I have already done all the above guides. Only uninstalling the Windows Security Update version KB5031356 can restore internet access on my computer.

I had to do the uninstall process many times every time Windows Security Update was updated.

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Windows 10: Cant connect to internet after KB5031356 update

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