Wired Network Unstable with Ubuntu 13.04

I have installed 13.04 64bit OS in Toshibha laptop. I have connected the Wired network but the issue is that connection is getting drop time to time even Network stayed connected.
I could not ping to the gateway. Then I have restart the network but the problem remain same. After physically unplugged & plugged the cable,the network is back to normal. But the issue is that this can not be done frequently.
So to overcome this issue I have followed the below step.

1. Found out that this issue is due to kernel bug in 3.8 version.
   
2. Then I have gone for a kernel upgrade to version 3.10, to do that use the below commands.
   

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.12-saucy/linux-headers-3.10.12-031012-generic_3.10.12-031012.201309141044_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.12-saucy/linux-headers-3.10.12-031012_3.10.12-031012.201309141044_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.12-saucy/linux-image-3.10.12-031012-generic_3.10.12-031012.201309141044_amd64.deb
sudo dpkg -i linux-headers-3.10.12-*.deb linux-image-3.10.12*.deb

Then Restart the computer.

After the reboot I have make ping to gateway and worked as usual. Continuously for 2 hours able to ping to gateway. So this is the way to solve the instability of network connection issue in Ubuntu 13.04 OS.