Windows 7: Wireless connects, but NO Internet

Windows 7 home premium - 64 bit OS - Dell Inspiron 5720.

Currently, I have a wireless network at home. No problem with 2 computers connected to it.

Wife just got new Dell computer. It recognizes the wireless, it connects, but, No internet.

I take the computer to work, and it connects right away to the wireless network, no problem, internet works perfectly.

I have spent hours researching this. I have totally uninstalled McAfee.

Suggestions welcome, TIA

So wireless if connected to another wireless router?

When connected to wireless (and no internet) start a command prompt:
Post route.txt. route.txt may be deleted afterwards

Not sure what you are asking. I have a wireless network. One router. I have two laptops that connect to it, have done so without problem for years.

I have tried to add a new laptop, simply want it to connect to the wireless. It does get connectivity. But, there is NO internet access.

Today, I brought that laptop to work, turned it on, and it immediately finds the wireless network, connects right away, and I CAN GET ON THE INTERNET. At home, I turn the computer on, it finds the wireless network, connects, but, I CANNOT GET ON THE INTERNET.

Just do the command I asked you to do and post the output file.
I simply want to know if it has a valid IP address, subnet mask etc.

I will do that when I get home.

Thanx for the help.

I don't know if this tells you anything, but this is what I get at work where my wireless connection is working fine:

===========================================================================
Interface List
16...c0 18 85 bc ca c8 ......Bluetooth Device (Personal Area Network)
14...c2 18 85 bc 4a c7 ......Broadcom Virtual Wireless Adapter
13...c0 18 85 bc ca c7 ......Dell Wireless 1704 802.11b/g/n (2.4GHz)
11...84 8f 69 d1 e6 48 ......Realtek PCIe FE Family Controller
1...........................Software Loopback Interface 1
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
12...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
20...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
21...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #4
17...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 172.31.0.1 172.31.3.20 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
172.31.0.0 255.255.0.0 On-link 172.31.3.20 281
172.31.3.20 255.255.255.255 On-link 172.31.3.20 281
172.31.255.255 255.255.255.255 On-link 172.31.3.20 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 172.31.3.20 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 172.31.3.20 281
===========================================================================
Persistent Routes:
None

Only interested in output after: "IPv4 Route Table"
Do the command agian if it's NOT working and post its output

Following is what I get at home when I am connected to the wireless, but cannot access the internet:

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.10 30
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.1.0 255.255.255.0 On-link 192.168.1.10 286
192.168.1.10 255.255.255.255 On-link 192.168.1.10 286
192.168.1.255 255.255.255.255 On-link 192.168.1.10 286
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.1.10 286
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.1.10 286
===========================================================================
Persistent Routes:
None

your ip address is 192.168.1.10. All computers in your house subnet use 192.168.1.*
default gateway has address 192.168.1.1

in command prompt:
ping 192.168.1.1
works? if not...works from another pc?

ping 173.194.66.94


works? if not...works from another pc?

output please