DELL Inspiron N 7520-Have problem with WIFI. Very slow connection n its iritating....

Below mentioned is CMD/ipconfig/all

Please help me to get hi speed.... my wifi service is very hi speed provider. Checked it with other branded laptops. Need how to over come it

Microsoft Windows [Version 6.2.9200] (c) 2012 Microsoft Corporation. All rights reserved. C:\Users\Kavita>ipconfig/all Windows IP Configuration Host Name . . . . . . . . . . . . : ipc Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Bluetooth Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network) Physical Address. . . . . . . . . : 60-36-DD-3F-31-16 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Ethernet: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : D4-BE-D9-2A-16-DA DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wi-Fi: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 2230 Physical Address. . . . . . . . . : 60-36-DD-3F-31-12 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::c4ba:e12f:356d:6144%12(Preferred) IPv4 Address. . . . . . . . . . . : 10.0.0.4(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 23 June 2013 06:50:22 Lease Expires . . . . . . . . . . : 24 June 2013 10:13:58 Default Gateway . . . . . . . . . : 10.0.0.1 DHCP Server . . . . . . . . . . . : 10.0.0.1 DHCPv6 IAID . . . . . . . . . . . : 257963741 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-18-C4-6F-60-36-DD-3F-31-12 DNS Servers . . . . . . . . . . . : 10.0.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{B389D404-880E-4F01-8B95-C7A4449D50ED}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 13: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab8:24bc:3f1a:35be:71ba(Pref erred) Link-local IPv6 Address . . . . . : fe80::24bc:3f1a:35be:71ba%17(Preferred) Default Gateway . . . . . . . . . : :: NetBIOS over Tcpip. . . . . . . . : Disabled C:\Users\Kavita>