hi,
i have two machine,
1. PC (WinXP) (192.168.1.1)
2. Asus Eeepc 1215p (Kali) (192.168.1.30)

i have share connection from PC to my netbook with LAN,
overall is ok, i monitoring my network by ping, so i can know if my network down or not,
every X minute(s) network is disconnect,

i found this problem when i using ubuntu 10.04, and i upgrade the kernel to fix eth issue in lucid. same problem like now, every X minute network is down, not in PC but in netbook,

this problem is solve when i install ubuntu 12.04.
but i found this problem again when i migrating to kali ?
so what can i do to fix this ?

Code:
l# ifconfig
eth0      Link encap:Ethernet  HWaddr 54:04:a6:2b:ea:e2  
          inet6 addr: fe80::5604:a6ff:fe2b:eae2/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:546 errors:2 dropped:0 overruns:0 frame:2
          TX packets:431 errors:0 dropped:0 overruns:0 carrier:2
          collisions:0 txqueuelen:1000 
          RX bytes:560993 (547.8 KiB)  TX bytes:32519 (31.7 KiB)

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:65536  Metric:1
          RX packets:353 errors:0 dropped:0 overruns:0 frame:0
          TX packets:353 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:23564 (23.0 KiB)  TX bytes:23564 (23.0 KiB)

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:10.162.196.182  P-t-P:10.17.95.13  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:32398 errors:202 dropped:0 overruns:0 frame:0
          TX packets:30560 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:38187685 (36.4 MiB)  TX bytes:2186973 (2.0 MiB)

wlan0     Link encap:Ethernet  HWaddr 74:2f:68:93:d8:f0  
          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)
Code:
# uname -a
Linux kali 3.7-trunk-686-pae #1 SMP Debian 3.7.2-0+kali6 i686 GNU/Linux
thanks for adv.
angga.