There are many simple and beautiful ways of reporting the problem.
what exactly you want ??
It should be consider that this is not the only way to accomplish the task . There are many ways to do the same task in different ways , that is the beauty of GNU/Linux . So don't cry .
If you are getting ip from a DHCP server then start your dhcp client if it is not. This may be accomplished with either graphical or command line method
Quote:
system-config-network-tui
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Same is true if static is there make appropriate changes by above mentioned command .
Please note it should be run with the " root user " privileges .