DHCP problemi

Herkese slm;

Tüm client lar laptop workgroup ortamında çalışıyor ve wireeless ile bağlanıyorlar.server 2003 Dns yok server da sadece dhcp kurulu. Bazı günler birden bağlantı kopuyor.map ve yazıcılara ulaşılamıyor.pc yi loggoff yapınca düzeliyor.Aşagıdaki event ları veriyor.

event id:1002

The IP address lease <ip address> for the Network Card with network address <MAC address> has been denied by the DHCP server <server ip address> (The DHCP Server sent a DHCPNACK message

event id:1003

Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address <MAC address>. The following error occurred:
<error description>. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server."

Event ID 1003 — DHCP Client Lease Validity

Updated: December 11, 2007

red

Each
time a Dynamic Host Configuration Protocol (DHCP) client starts, it
requests IP addressing information from a DHCP server, including:

IP address
Subnet mask
Additional
configuration parameters, such as a default gateway address, Domain
Name System (DNS) server addresses, a DNS domain name, and Windows
Internet Name Service (WINS) server addresses

When a DHCP
server receives a request, it selects an available IP address from a
pool of addresses defined in its database (along with other
configuration parameters) and offers it to the DHCP client. If the
client accepts the offer, the IP addressing information is leased to
the client for a specified period of time.

Event Details

Product:	Windows Operating System
ID:	1003
Source:	Microsoft-Windows-DHCP-Client
Version:	6.0
Symbolic Name:	EVENT_FAILED_TO_RENEW
Message:	Your computer was not able to renew its address from the network (from the DHCP server) for the network adapter with MAC address %1. The following error occurred: %2. Your computer will continue trying to obtain an address on its own from the DHCP server.

Resolve

Start the DHCP Server service

On the DHCP server, configure the DHCP Server service to start automatically, and then start the service.

To perform these procedures, you must be a member of the Administrators group, or you must have been delegated the appropriate authority.

To configure the DHCP Server service to start automatically:

At the DHCP server computer, click Start, click Run, type services.msc, and then click OK.
Double-click DHCP Server.
On the General tab, in the Startup type box, click Automatic, and then click Apply.
Click Start, wait for the progress bar to complete, and then click OK.
On the File menu, click Exit.

Verify

To verify that the computer has a valid lease:

At the DHCP-enabled client computer, click Start, in Start Search type cmd, and then press ENTER.
To verify a DHCP client lease, type ipconfig /all to view lease-status information.
The output of the ipconfig command should show an IPv4 or IPv6 address marked "preferred."