Clearing Arp Cache

If you can't repair your network connection and you need to clear your ARP cache here is the tip:
run-->cmd
there you enter :

C:\>netsh interface ip delete arpcache
Ok.

To verify if it worked type:
arp -a

If it didn't work repeat the procedure.

If stil no change try to remove the cable for 1 minute
and then try again with the procedure described above.