HELP!! Multiple Networks with no internet access issue

Hi, i'm running Windows 7 on my laptop and i am using mobile 3G modem as an adapter to connect to Internet. The problem is when i am connect the NIC to my DLINK router, the Internet connectivity become lose where Network and Sharing center stated that there is Multiple Networks with no Internet access. FYI, my DLINK router is not connected to Internet but Mobile 3G modem does connected to internet. Any help and suggestion would be greatly appreciated!!

This is my result of ipconfig /all

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Zai>ipconfig -all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Zai-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

PPP adapter XL GPRS:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : XL GPRS
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.234.89.111(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 0.0.0.0
DNS Servers . . . . . . . . . . . : 202.152.254.245
202.152.254.246
Primary WINS Server . . . . . . . : 10.11.12.13
Secondary WINS Server . . . . . . : 10.11.12.14
NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-1B-24-79-1C-17
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, February 24, 2010 3:04:56 PM
Lease Expires . . . . . . . . . . : Wednesday, February 24, 2010 4:04:56 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{5A23965E-DBB5-45D8-8964-D048F303A935}:

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* 11:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter isatap.{7E8ACF46-20F4-4BD8-AD8D-02714C5706BF}:

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

it's a Huawei 3G modem which is Mobile Broadband service. I got no idea regarding this problem. the internet access was just gone once i pluged the Ethernet to my DLINK router. do you have any suggestions?

The problem you have had I to had and solved it by uninstalling AVG on my system. AVG was creating a secondary network with default gateway just like your system. My system would tell me at the command prompt when I had typed ipconfig that I had two default gateways one was 0.0.0.0 and the other was my router default gateway. the 0.0.0.0 was first in the list and all requests were going there instead of my default gateway for my router. AVG for some reason created this gateway 0.0.0.0 and I can only assume its for security reasons. Hope this helps someone, after removal of AVG I now have access to everything as I should have. AVG sucks