"Local Area Connection" Doesn't Have a valid IP Configuration

Ok, I have spent like a whole week trying to search a solution for this problem but nothing have worked so far.

I am currently using my universities Wifi and LAN.

The wifi is working fine but 2 weeks ago when I connected the LAN cable to a LAN port in my
Universities class room It shows "No Internet Access" and after troubleshooting the above message appeared "Local area connection" doesn't have a valid IP configuration.
I request You to post any solution to this problem
I have done the following things

1. uninstalled and reinstalled my ethernet driver

2. I have tried flush dns,renew and all sorts of commands

3. I have disabled ipv6 in the driver properties

4. And when I had no other option I reinstalled my windows 7 Ultimate

5. and again clean installed it

6. and again installed it from a bootable drive after formatting the C Drive

the following is my ipconfig/all


Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Hussain-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : innu.niituniversity.in

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82579LM Gigabit Network Connecti
on
Physical Address. . . . . . . . . : F0-1F-AF-2C-95-63
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IPv4 Address. . : 169.254.220.116(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : innu.niituniversity.in
Description . . . . . . . . . . . : Dell Wireless 1504 802.11b/g/n (2.4GHz)
Physical Address. . . . . . . . . : 0C-84-DC-BC-07-E5
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 172.19.18.191(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Lease Obtained. . . . . . . . . . : Saturday, April 09, 2016 11:10:47 PM
Lease Expires . . . . . . . . . . : Sunday, April 10, 2016 11:11:38 PM
Default Gateway . . . . . . . . . : 172.19.16.1
DHCP Server . . . . . . . . . . . : 172.19.1.230
DNS Servers . . . . . . . . . . . : 172.19.1.240
172.19.1.202
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{2E38D91A-F343-4974-B88B-279C8B746353}:

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 isatap.innu.niituniversity.in:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : innu.niituniversity.in
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Windows\system32>