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TCP IPv4 DNS server address keeps changing to a specific IP address (preventing internet access) when I need it to stay obtain address automatically
Control panel
Network and internet
Network connections
Wireless network connection
Wireless network connection properties
Internet protocol v 4 TCP/IPv4 properties
Sony laptop nearly new, windows 7, didnt have any problem until last week, have not changed any settings that i am aware of. One day I just could not get on the net. Good signal to wireless router but no internet access. Eventually tracked prob down to above, each time i switch on i have to go back in to Internet protocol V 4 properties and select obtain DNS server address automatically
If I am on line for a reasonable length of time i have also noticed (once) it changed during a session
How can i get it to stay on obtain DNS server address automatically
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Hi,
How long have you been facing this issue?
I would suggest you to scan your computer for virus and check if it helps, it might be a virus issue.
You can also try performing online complete PC virus scan on your computer and check if it helps, here is the link:
http://onecare.live.com/site/en-us/default.htm
Please respond back with the status of the issue and let us know if you have any issues.
Azam – Microsoft Support.
So far this has worked for me. No one else has been able to help and i paid $120 to a computer guy and it just happened again. early days but thank you very much. Our computer is a vaio running windows 7 and the problem happened out of the blue.
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Apparently Network Locations (A.K.A. Profiles) can manage your IPv4 settings and potentially cause undesired effects such as the one you have described here, and which I too have experienced. We have a couple of laptops in our office that were randomly reverting to an old manual DNS setting we used temporarily during a server upgrade nearly a year ago. I'm sure Windows created a new profile when I changed the DNS to static, and randomly used that profile whenever the machines connected internally.
Deleting Network Locations will remove any offending profiles.
This is the very short "down and dirty" version for Windows 7:
Log on with the proper administrator permissions.
Go to Network and Sharing Center.
Under View your active networks, click the icon on the left next to your network name.
When the Set Network Properties window open click the Merge or delete network locations.
At this time, unplug any network cables and turn off wireless. You cannot delete a network that is in use.
Delete the network location you think is causing the settings to change, (or delete them all like I did.). Windows will then automatically create a new Network Location the next time you connect. (This will not un-join a PC from a domain or forget stored wifi passwords, etc.)
Close out and go back to the Network and Sharing Center. On the left click Change adapter settings
Right click on your network adapter and select Properties.
Right click on your Internet Protocol Version 4 (TCP/IPv4 and select Properties.
Set to IP and DNS to obtain address automatically. Click advanced and make sure you don't have residual garbage in the DNS and WINS tabs. These should probably always be be blank if you are exclusively using DHCP.
Rinse and repeat for any other offending NICs or wireless adapters.
Reconnect to your network(s)
The profile(s) will rebuild itself with the current IPv4 adapter settings as it's default.
If you have a work profile for example that requires static IPv4 settings, and other connections using the same network adapter with DHCP then all bets are off. You may need to use something like NetSetMan to easily manage and switch between profiles on the fly.
Good luck and hope this helps.
You my dear Sir are a Hero ! Tried all IP and DNS settings through windows but failed to remember to change 'obtain automatically' button within the Vaio Control Centre. so now im back up and running, Thanks to you. Cheers.
