My ASPIRE V5 - 552P loses internet connection

There can be several reasons for frequent disconnect of internet connectivity. To help you troubleshoot the issue, please find the link given below and follow the step-by-step instructions mentioned on it:
http://windows.microsoft.com/en-in/windows-vista/troubleshoot-network-connection-problems

If issue persists, you can also find one more link given below for further troubleshooting:
http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/frequent-loss-of-internet-connectivity/cc8444eb-5a3d-4f55-b7ce-3fe916b5bdba

Hope this will help you.