Self-Assigned IP - Tried Everything?
The Self-Assigned IP address error will not go away on my Macbook. I recently upgraded from 10.5.8 (Leopard) to 10.6.2 (Snow Leopard).
What I have tried...
1) Deleting all network related Preference files:
/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist
/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
/Library/Preferences/SystemConfiguration/perferences.plist
/Library/Preferences/SystemConfiguration/com.network.identification.plist
2) Disabling Firewall (it was never on, tried on/off multiple times)
3) In Keychain Access. Locating network in question. Access Control. "Allow all applications..."
4) Deleted All Network Locations. All network connections. All network passwords. Retried 1-3, no luck.
5) I can plug directly into wireless router and receive an IP address on the Ethernet.
6) I cannot manually assign an IP address (IP, Router, DNS, etc.).
Other notes of interest...
1) This occurs on multiple networks, but not all.
2) My iPod Touch connects successfully to all networks where my MacBook self-assigns. Other PC computers connect successfully to the network also.
3) I never had an issue with self-assigned IP addresses before upgrading to Snow Leopard.
4) After upgrading to Snow Leopard, I had other issues (the freeze issue in particular) that I resolved by creating a new user account.
Replacing the router is not an option (it is not mine). Re-installing Snow Leopard is not an option.
Any other ideas floating around I have not listed/tried above? Thanks for the help!
MacBook5,1 - 2.4 GHz - 4GB, Mac OS X (10.6.2)