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Stupid Norton: IPv4 autoconfiguration error
I spent two hours trying to figure out why, whatever the configuration settings I threw at it, a laptop would not connect to a wireless connection. Turns out the culprit was Norton Internet Security. Only by running the Norton Removal Tool was I able to fix the computer.
Basically, ipconfig /all would give me the following message:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::ed42:547:5d1b:20ef%9
Autoconfiguration IPv4 Address. . : 169.254.32.239
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
Ooooh, how fun, they say. 169.254.x.x is the IANA-defined black-hole. Oops. Of course, rebuilding the IP stack or turning off IPv6 didn’t help. Sigh. Probably recommending that everyone remove Norton now now that MS Security Essentials, AVG, Ad-aware, etc etc do a better job without destroying the computer while updating.