Hi Nikhil,
There is problem in Network controller. The network adapter installed is Realtek RTL8102E/RTL8103E Family PCI-E Fast Ethernet NIC (NDIS 6.20). But on system analysis it shows network adapter is microsoft teredo tunneling adapter. Can you send me the sequence/order in which I should install my drivers. My Laptop model no is inspiron 15R, N5010-2850