Thanks both. Sorry tried everything suggested but still does not work.
The warning on Safari said "Safari can’t open the page “
http://www.google.com/” because Safari can’t connect to the server “www.google.com”."
If I use traceroute it said:
traceroute: Warning: www.google.com has multiple addresses; using 74.125.53.106
traceroute to www.l.google.com (74.125.53.106), 64 hops max, 40 byte packets
traceroute: sendto: No route to host
1 traceroute: wrote www.l.google.com 40 chars, ret=-1
*traceroute: sendto: No route to host
traceroute: wrote www.l.google.com 40 chars, ret=-1
*traceroute: sendto: No route to host
traceroute: wrote www.l.google.com 40 chars, ret=-1
*
traceroute: sendto: No route to host
2 traceroute: wrote www.l.google.com 40 chars, ret=-1
"