wireless - Not able to connect to local network

I have installed Kubuntu , I am able to connect to Internet and able to access external sites, but in my local network i have bugzila installed that i am not able to access, even i am not able to ping the gateway also 192.168.1.1 .
below is the result of ifconfig command

Please help .

Thanks

~# ifconfig
eth0      Link encap:Ethernet  HWaddr b8:70:f4:da:f9:a8
          inet addr:192.168.1.100  Bcast:192.168.1.255  Mask:255.255.255.0
          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:42 Base address:0x2000
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:884 errors:0 dropped:0 overruns:0 frame:0
          TX packets:884 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:81131 (81.1 KB)  TX bytes:81131 (81.1 KB)
wlan0     Link encap:Ethernet  HWaddr 68:5d:43:2e:1c:79
          inet addr:192.168.1.26  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::6a5d:43ff:fe2e:1c79/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2446 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2324 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1909441 (1.9 MB)  TX bytes:393292 (393.2 KB)