Network Manager Says There's A Network Connection When I Can't Ping Anything
 

Title explains the main problem. I'm using Ubuntu Netbook Remix 10.04 on a wired connection. Wireless connections worked fine last I checked. When I plug in an ethernet cable the alert in the top right-hand corner comes up and tells me I have a wired network connection, but when I open up my web browser, it tells me the web page is unavailable. I try pinging a local computer and every line it says Destination Host Unreachable. When I kill the process with ^C it says
How do I fix this? Don't tell me to go down a reset my router because my Solaris machines and my other Ubuntu computer ping each other and connect to the internet without any problem. Besides, if I wanted to restart stuff instead of actually fixing the problem I might as well use Windows.

what were you trying to ping? maybe there is a dns problem. Try checking connection information in network manager if something's missing.

I'm pinging one of my Solaris computers. I don't think it could be a DNS problem because I have the host name and IP address specified in /etc/hosts. Here's the connection information:

here is a bit of homework for you. Please run the following command in a terminal (gnome-terminal for example):

#first run as root
su -
ifconfig
#then ask ethtool what it thinks of your network connection (replace eth0 with the name of your interface if necessary).
ethtool eth0
#check your routing table
route

# then do a ping and give us the command and the result.