Windows 10: DNS or DHCP error

Dear Good Samaritans

My ACER laptop network suddenly stops working. The symptoms are: Only Google sites and some other sites are accessible. All others will return the error: DNS PROBE FINISHED NXDOMAIN. All other mobile devices and the other Thinkpad work fine in the same network.

The router is Telekom Speedport.

I have tried:

1. Restart Router/Modem.

2. Reinstall and Rollback Qualcomm Atheros Driver

3. Checking DHCP client in registry/in task manager/in command prompt, the result is access denied. But it is currently automatic.

4. Wired client and WLAN client in registry, all automatic. Not helpful.

5. ipconfig/release and renew: can't connect DHCP

6. netshell commands: not helpful.

7. Network reset: not helpful

8. Troubleshooter: returns different answers, sometimes no valid IP, sometimes no DNS, sometimes no problems.

9. Router firmware update: does not affect anything

10. Windows update to 20H2


Can anyone help me with this persistent issue?


EDIT: My current IP is 165XXX. I think the DHCP has errors.

:)

 

DHCP and DNS issues

I'm sorry but this will be a long post.

A bit of history; We recently rolled out VoIP phones for a bit under 300 users. Since then, DHCP and DNS has been giving more issues. The increase in requests to our DHCP and DNS server caused alarms for performance to be triggered. I bumped up the resources
to compensate and we no longer see performance warnings. However, the problem remains.

We are primarily running Windows 10 Pro 64-bit.

We are not out of addresses.

There is nothing new in the event log.

I can run ipconfig commands to temporarily fix the issue.

This hasn't effected everyone that I can tell.

It seems as though leases expire and don't renew. It occurs after reboots as well as just suddenly happens in the middle of the day. Also, reboots don't necessarily cause a DHCP address to be properly assigned.

 

DNS assigned by DHCP not working

Hi,

5 days ago my wifi connection stopped accepting the assigned DNS over DHCP. I'm not aware of making any changes to the configuration that could have led to this problem, there was one windows update relating to flash and the malicious software removal tool,
but no others since the problem has occured

Despite the network the adapter properties being set to "obtain DNS server address automatically" regardless of the network I connect to and the settings issued by the DHCP server, the DNS on my computer is set to 192.168.1.1. (other computers work fine)

I have to manually assign the correct DNS server and change it each time I change network

does anyone know what is happening?

Thanks

 

DNS server is constantly not responding and constantly getting this error msg: Windows can't communicate with the deivce or resource (primary DNS server)

Hi,

Thank you for these solutions, however none of them have worked.

For method 2, I cannot find the Basic Setup category, there is only Quick Setup (no setup option on its own) and in Quick setup there is no option to change DHCP. Also for step 2, I do not have "Local Area Connection", instead I have "Wi-Fi" as show in the
picture in my post. Is there any specific reason it is not Local Area Connection? If so, is it possible to make it Local Area Connection.

I am also still getting the error but not as often, sometimes there is an error "Default gateway is not available".

I appreciate your efforts but are there any other solutions?

Thanks