I let my laptop upgrade to 12.04. And have no network afterwards. I went through all the articles I could find in google.
Right now, I can ping google, and yahoo, but not cnn.com for example or anything else. Firefox says it can't reach google.com or gmail.com (or anything, not even IP.
dns-nameservers 188.8.131.52 <<<<<added auto lo iface lo inet loopback
#prepend domain-name-servers 184.108.40.206,220.127.116.11; prepend domain-name-servers 127.0.0.1; <<<<< tried both
/etc/NetworkManager/NetworkManager.conf with and without dns=dnsmasq commented out.
I can ping my wireless router and connect to it just fine.
Have tried proxy/noproxy.
This looks like After Upgrade to 12.04 - cannot connect to network but no answer there.
I would hate to do a fresh install. Any assistance appreciated.