Hey there Assal,
First off, can you do an ipconfig /all and post the Lease Obtained and Lease
Expires results in here?
Also, acquiring an address is part of the DHCP protocol in the TCP/IP Stack.
Now, you can check to see if you have your connection set to a static IP in
the connection config by doing the following:
Go to Start>Control Panel
Click on Network and Sharing Center
In the Connection section, click on View Status
Click on the Properties button (If you have UAC enabled, it will prompt you
for Admin Credentials)
Click and highlight Internet Protocol Version 4
Click the Properties button.
Make sure the "Obtain an IP Address Automatically" and "Obtain DNS Server
Address Automatically" options are selected. If not, select them, the click
OK, OK, and Close.
If they are set to automatic, then your machine is set for DHCP. Here's the
gist on how that works...remember DORA: Discover, Offer, Request, Acknowledge
Your PC goes out to the network and says "'I'm Here! Somebody give me an
Address!!!" (Discover)
Then the modem or router for your network (usually it's relayed from your
cable modem if you're direct connected) OFFERS your machine an address. If
your old address is still in the available pool, it will offer that one to
your machine.
Your machine then accepts the address, and sends a REQUEST notice saying
that it has an address.
When the machine makes that broadcast...the DHCP server (cable
modem/router/whatever) ACKNOWLEDGES the request and the machine is done.
Long story short, it's very feasible that your machine is still DHCP, and
there are no issues with the process, but your machine just happens to keep
being offered the same address.
So what you need to do is look at the lease info on the ipconfig /all. If
it's not more than a few days old, you're getting refreshed.
Does this help?
Best Regards,
Will