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I've just had to buy a new Windows PC as a temporary replacement for a mac in repair. Everything is fine, with one small annoyance. Every now and then (i.e. every couple of hours, no pattern though), I have to do an ipconfig /renew.

I also have to do that every time that I shut down or hibernate the machine. Any idea why this would happen, or how to fix it?

Running Windows 7, HP Pavilion dm1 notebook PC.


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How is the IP and other network settings assigned? – Dave M Feb 25 '12 at 21:03
Auto generated as far as TCP/IP settings are concerned on the devices' properties, is that what you mean? – David Archer Feb 25 '12 at 21:09
I wonder if the loaner PC has spyware/monitoring software installed causing this. Most HP's have a recovery partition to restore it to the original HP Windows install, might be worth restoring… – Moab Feb 25 '12 at 23:32
It's not a loan machine, bought new and installed from scratch. – David Archer Feb 26 '12 at 23:50

There are online reports of DHCP autorenew failures on Windows 7 dating back to mid-2009 at least. Since you bought a new system you might check to make sure your Windows patches are up-to-date. The next thing to try is turning off Wake-on-LAN in your Ethernet adapter config, as there is a report of this curing the problem.

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Seems to have made a difference. I still have to renew every now and then, but it's doing a lot better after updates. Will try wake on lan config next. – David Archer Feb 26 '12 at 23:51

For some reason, even with updates there were still problems. I set the DNS in the TCP/IP v.4 router settings to use and, and that has worked an absolute treat. Job done.

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