Q: Installed Lion, now cannot connect to internet!!!

How did you connect to the Internet before? A few details would be useful.

http://support.apple.com/kb/TS3802

Turn off IPv6 in Network Advanced TCP/IP and reboot, see if that works.

BackupLion

http://www.eggfreckles.net/tech/burning-a-lion-boot-disc/

http://eggfreckles.net/tech/installing-lion-clean/

Check Apple's license details throughly before usingorinstalling Lion.

This is what binds you legally, notwhat users say or sites suggest you can do.

I'd suggest restarting your router or modem...

I'm having the same problem.

No, I cannot figure out how to get my Internet to work. My IP and DNS look correct but nothing is working. My iPad 2 connects just fine with the same DNS etc.

My proven method for network trouble is to create a new Network Location and erase all the old ones.

Give this a shot:

http://support.apple.com/kb/ht3964