Hello santanu behera,
Welcome to the forum
If you can access the internet using your system then you should be able to update using Menu>Favorites>Install Updates
Hold down Ctrl and Alt Keys then press t key, to open your terminal
Copy/paste or type into terminal
Press enter.
For eth0 or pxxxx (etc)
If line #4 says UP, and line #5 and #6 say 0 errors and 0 dropped you should be good to go.
Welcome to the forum
If you can access the internet using your system then you should be able to update using Menu>Favorites>Install Updates
Hold down Ctrl and Alt Keys then press t key, to open your terminal
Copy/paste or type into terminal
Code:
netstat -ie
Press enter.
For eth0 or pxxxx (etc)
If line #4 says UP, and line #5 and #6 say 0 errors and 0 dropped you should be good to go.