DEll Inspiron N4110 , Net unplugged , even though wireless connection is working !

Hello All,

I have Dell inspiron laptop model number N4110. The probelm is that when i plug into net connection , the laptop says its unplugged. But through the same plug , other computer are working , their net connection are working. I dont know what is the problem?, my wireless connection is working , but when i plug into socket to have net connection , it doesn't works. It shows un -plugged. I have checked the settings and all properties . Earlier it was working a few months back in india , i just recently changed my country and now its nt working. I am not very gud at Computers problems. Please solve my problem. thanks in advance