I have a Hewlett Packard DV6. I connected to the access point. I receive an IP address/default gateway/DNS,etc(DHCP). I cannot ping my gateway. DNS lookups fails. There is just no connectivity. My driver is listed as being IWLWIFI. An lspci shows my card to be a Realtek RTL8101E/RTL8102E.
I can't ping myself from another computer.

eth0      Link encap:Ethernet  HWaddr c8:0a:a9:0c:a7:45  

          UP BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

          Interrupt:41 Base address:0xe000 



lo        Link encap:Local Loopback  

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:561 errors:0 dropped:0 overruns:0 frame:0

          TX packets:561 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:42164 (42.1 KB)  TX bytes:42164 (42.1 KB)



wlan0     Link encap:Ethernet  HWaddr 00:26:c7:04:97:c0  

          inet addr:192.168.1.109  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::226:c7ff:fe04:97c0/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:12 errors:0 dropped:0 overruns:0 frame:0

          TX packets:71 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:2035 (2.0 KB)  TX bytes:12371 (12.3 KB)