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3157
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5
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Static IP clients stuck on dhcp_reqd after upgrade to LAP

c.netherton
Level 1
Level 1

I have wireless thermal printers that have static IP addresses. They are on an open wlan and the dhcp required box is not checked.

The client gets hung at DHCP_REQD even though the client has a static address.

Controllers are standalone wlc4402(x2) running 41.1.185.0. Access-points are a mix of 1510, 1231 and 1242. Clients running 802.1x PEAP and DHCP are ok (different SSID).

This is the log from the WCS troubleshooting window:

09/17/2007 06:57:49 EDT INFO 42.201.0.40 Controller association request message received.

09/17/2007 06:57:49 EDT INFO 42.201.0.40 Received reassociation request from client.

09/17/2007 06:57:49 EDT INFO 42.201.0.40 The wlan to which client is connecting does not require 802 1x authentication.

09/17/2007 06:57:49 EDT INFO 42.201.0.40 Client does not have an IP address yet.

09/17/2007 06:57:49 EDT INFO 42.201.0.40 Client Moved to DHCP Required State.

09/17/2007 06:57:49 EDT INFO 42.201.0.40 Client moved to associated state successfully.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 Controller association request message received.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 Received reassociation request from client.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 The wlan to which client is connecting does not require 802 1x authentication.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 Client does not have an IP address yet.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 Client Moved to DHCP Required State.

09/17/2007 07:00:00 EDT INFO 42.201.0.40 Client moved to associated state successfully.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 Controller association request message received.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 Received reassociation request from client.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 The wlan to which client is connecting does not require 802 1x authentication.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 Client does not have an IP address yet.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 Client Moved to DHCP Required State.

09/17/2007 07:00:05 EDT INFO 42.201.0.40 Client moved to associated state successfully.

8 Replies 8

irisrios
Level 6
Level 6

When configuring the WLAN on the controller make sure DHCP addr.assigent is option is not set for the SSID

As mentioned above, the DHCP Required box is NOT set for that SSID.

Hi.

I have the same problem, did you fix it?

Does you thermal printer go into sleep mode? Check the power setting on the wireless and make sure you have it set to maximum performance. I have seen this when the WLC doesn't see the client because the device goes into sleep mode and shuts the wireless card down.

-Scott
*** Please rate helpful posts ***

We got wireless network cameras (Axis 207W) that only connects when they are configured with DHCP, If they are configured with IP-addresses they get stuck at DHCP_REQ.

Our Laptops connects with both DHCP or IP configured, on the same WLAN as the cameras.

The cameras has no sleep mode.

nilsson.magnus
Level 1
Level 1

Have seen the same problem on a 4402 running 4.2.112. The debug client [client_mac]command in the controller gives:

DHCP_REQD (7) DHCP Policy timeout

DHCP_REQD (7) Pem timed out, Try to delete client in 10 secs.

Lhausklsg
Level 1
Level 1

I know it is alomost 10 years ago, this ticket has been created.
But I had the same issue.

My solution: Enable "Passive Client" in wireless advanced...

THANK YOU. This worked for me as well. 

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