WISM loose 80 AIR-AP1231 after reload

Answered Question
Oct 6th, 2008
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I have reloaded ( RESET ) the WISM from a 6500 sup 720 . After when the WISM came up I have loosed 80 AP that was previously associated with it.

The logs on the WISM did not say anything important

After 3 days my AP became 5 .

Question : I have to wait a mounth before my WISM will register the others 87 ?

Any suggestion will be appreciated


Correct Answer by jeff.kish about 8 years 8 months ago

What are the access points doing? Are their LEDs changing colors?

The semaphore error is listed at:


Which, unfortunately, provides no help for resolving the issue. It sounds like you'll need to open a TAC case to resolve this.

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Overall Rating: 5 (1 ratings)
jeff.kish Mon, 10/06/2008 - 05:33
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There are actually two controllers built into each WiSM module. Have you checked both controllers to make sure that the access points didn't simply switch over to the other one?

abelleli71 Mon, 10/06/2008 - 05:49
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you mean session processor 1 slot 1 ?

We plane an HW-module RESET from 6500 . Do this fix up and reste both controllers ?


jeff.kish Mon, 10/06/2008 - 07:56
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If you reset the entire module, then both controllers would have been reset. Still, have you checked to see if the access points are on the other controller?

If you can't find them on another controller, go find an access point that's "missing" and see what the LEDs are doing. If they're repeatedly turning red -> amber -> green, then the access points are stuck finding the controller. Try hard-booting one and see if that fixes the problem.

How do access points find the controller? Through broadcast, DHCP, or DNS?

abelleli71 Mon, 10/06/2008 - 23:20
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I have RESET the entire module and nothing changes . The DHCP is use to comunicate to the AP but the AP are 80 ! Now they are in charge to another AP


abelleli71 Tue, 10/07/2008 - 05:14
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I have already seen this document

And I cannot open a TAC for this issue.

The leds is not possible to seen how they works because is located in very far .

The are registered in other WISM located in different and no more in the WISM where they are before .

So this means that when you reload a WISM it will loose all the AP registered on it ; and another WISM , placed in the same LAN ; will catch the loosed AP

Attached sh tech for references


jeff.kish Wed, 10/08/2008 - 06:32
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That's correct, and you can always use AP fallback mode to get them to go back to their primary WLC one the WLC comes back up.

Glad to see your issue was resolved :D

g.rienstra Wed, 10/15/2008 - 02:10
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I Don't know if you use an NTP server of local time.

Make sure the WISM is in sinc with the time.(even if it displays the correct time !)

(Press set time once if you do this liocally on the WISM) otherwise make sure connectivity to the NTP server


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