Need Help: Internet gets stuck using an old laptop

X-jo

Disciple
Hi I have a 3.5yrs old Acer 4520. I use internet (wired-LAN). Before when it used to get disconnected, all I had to do was Local Area Connection->Disable and then enable it again. But now when internet gets disconnected and i try the Disable, the Local Area Connection window gets stuck and doesn't go off. But the symbol does from taskbar, so when i enable it back it says Connection failed. So the only method I can do(to get mu net back) is to restart. When i restart, its gets stuck in the logout screen and I usually have to remove the battery and then start. It works.

So I want to know that is there a way to restart(without shutting down) the network drivers or something which would give the network adapter a fresh start so that i can connect back my internet?
 
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