the sytem is 3yrs old. It ran well until I decided to reload Linux - forgetting the pains I had getting it to network the first time.
Since you resolved the problems before, they can certainly be resolved again. Can you remember anything about what worked the last time?
Please provide some additional background.
It this a wired or wireless connection? If wireless, have you tested wired?
What is your ethernet/wireless chipset?
This looks strange to me. Are you saying that 220.127.116.11 is your primary DNS and 18.104.22.168 is your secondary?
What is the output of ifconfig? For readability, please surround it with "code" tags, which become available when you click the "Go Advanced" button to the right of the "Quick Reply" button beneath the compose message window.