Posted 23 September 2008 - 08:17 PM
Your IP address is within a 64.80.128.x range and that includes your IP, default gateway, DHCP server.
In the first picture, it appears that you have just one DNS server, several hops away, possibly relayed by the 64.80.128.x router to another, possibly relayed to another, WAN router at 10.0.0.1 for its DNS information.
That DNS Server might be down.
Your second screen shot looks better to me in that it shows 3 DNS servers.
How does it all compare to ipconfig /all information presented in the cmd prompt (Start > Run > cmd and ask for ipconfig /all)?
Is there a firewall on the computer? What kind? Considering that you're able to so easily restore a connection, I suspect that you're just losing a connection to the DNS servers attempts at maintaining the connection as something might be blocking. And quite often this requires a bit of firewall tweaking - such as permit the connections with DNS servers, or in ZA-speak, add DNS servers to the trusted zone, etc in order to prevent a firewall from killing the existing connection.
Don't worry about IPv6. It's in use, but very, very little. The normal use is what we're all accustomed to, IPv4. You can actually disable IPv6 in the TCP/IP properties till we all need it a year or two or three from now.
Skype might be ok because you have, someplace, hardcoded IP and port, so it doesn't have to go searching DNS servers.