Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Cisco 4400 loosing its ap's at ap reboot!

Hello!

We have an customer that has a installation with around 50 1130ap's connected to a Cisco 4404.

The system is up and running but when we restart an ap it will not connect

again to the controller! (color cycle, red orange green you know ; )

I does get ip adress and can ping gateway from tha ap's cli and so on.

We have also tried adding new ap's with "master controller" checkbox marked. (is it called that?) But with no luck!

12 REPLIES
Silver

Re: Cisco 4400 loosing its ap's at ap reboot!

Are you saying that access points that are currently connected to the controller can't be rebooted without them losing the controller? Or are you saying that you can't get new access points to connect?

How is the 4404 connected to the wired network? Are you using etherchanneled trunks, or are you using separate connections? Also, how many access points are currently connected?

How do new access points find the controller? Via broadcast, DHCP, OTAP, or DNS?

Sorry for all the questions, but hopefully we can lock down the problem :)

New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

First statement is yes. we have a new access point that i will try tomorrow. (will enable "master mode" then)

The switchport the controller is connected to is unmanaged/trunkport

(the network's is strangely configured, only separated by subnetting)

There are 48 aps all in all. But now several are not connected anymore.

It feels like someone hase configured a router or som network equipment (dhcp?)between the controller and the ap's. But how could then aps work before reboot?

(they get a "good" iprange in the same subnet range)

The ap's boot log below->

(should it go in to discovery mode every start?)

Hall of Fame Super Silver

Re: Cisco 4400 loosing its ap's at ap reboot!

What does the log on the ap show. Is the time on the wlc set right? If you had the ap's joined previously, then you shouldn't have an issue. Post the log from an ap.... it will help us understand what is going wrong.

-Scott
*** Please rate helpful posts ***
New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

Base ethernet MAC Address: 00:07:0e:2a:82:32

Initializing ethernet port 0...

Reset ethernet port 0...

Reset done!

ethernet link up, 100 mbps, full-duplex

Ethernet port 0 initialized: link is up

Loading "flash:/c1130-k9w8-mx.123-11.JA3/c1130-k9w8-mx.123-11.JA3"...(Removed some signs)

File "flash:/c1130-k9w8-mx.123-11.JA3/c1130-k9w8-mx.123-11.JA3" uncompressed and installed, entry point: 0x3000

executing...

Removed text here

Cisco IOS Software, C1130 Software (C1130-K9W8-M), Version 12.3(11)JA3, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Mon 02-Apr-07 11:28 by pwade

Image text-base: 0x00003000, data-base: 0x00526F00

Initializing flashfs...

flashfs[1]: 9 files, 3 directories

flashfs[1]: 0 orphaned files, 0 orphaned directories

flashfs[1]: Total bytes: 15998976

flashfs[1]: Bytes used: 5478912

flashfs[1]: Bytes available: 10520064

flashfs[1]: flashfs fsck took 4 seconds.

flashfs[1]: Initialization complete....done Initializing flashfs.

cisco AIR-LAP1131AG-E-K9 (PowerPCElvis) processor (revision A0) with 24566K/8192K bytes of memory.

Processor board ID FCZ1131Q0A8

PowerPCElvis CPU at 262Mhz, revision number 0x0950

Last reset from power-on

LWAPP image version 4.0.217.0

1 FastEthernet interface

2 802.11 Radio(s)

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: 00:07:0E:2A:82:32

Part Number : 73-8962-12

PCA Assembly Number : 800-24818-11

PCA Revision Number : B0

PCB Serial Number : FOC11291RAP

Top Assembly Part Number : 800-29144-02

Top Assembly Serial Number : FCZ1131Q0A8

Top Revision Number : A0

Product/Model Number : AIR-LAP1131AG-E-K9

Press RETURN to get started!

New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

*Mar 1 00:00:05.738: %SOAP_FIPS-2-SELF_TEST_IOS_SUCCESS: IOS crypto FIPS self test passed

*Mar 1 00:00:07.208: %SOAP_FIPS-2-SELF_TEST_RAD_SUCCESS: RADIO crypto FIPS self test passed on interface Dot11Radio 0

*Mar 1 00:00:07.562: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset

*Mar 1 00:00:08.758: %SOAP_FIPS-2-SELF_TEST_RAD_SUCCESS: RADIO crypto FIPS self test passed on interface Dot11Radio 1

*Mar 1 00:00:09.863: %SYS-6-LOGGERSTART: Logger process started

*Mar 1 00:00:09.920: %CDP_PD-4-POWER_OK: Full power - AC_ADAPTOR inline power source

*Mar 1 00:00:09.926: %SYS-5-RESTART: System restarted --

Cisco IOS Software, C1130 Software (C1130-K9W8-M), Version 12.3(11)JA3, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Mon 02-Apr-07 11:28 by pwade

*Mar 1 00:00:09.926: %SNMP-5-COLDSTART: SNMP agent on host AP0007.0e2a.8232 is undergoing a cold start

*Mar 1 00:00:10.007: %DOT11-6-FREQ_SCAN: Interface Dot11Radio0, Scanning frequencies for 13 seconds

*Mar 1 00:00:10.798: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up

*Mar 1 00:00:10.941: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to down

*Mar 1 00:00:10.980: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down

*Mar 1 00:00:11.798: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up

*Mar 1 00:00:22.765: %DOT11-6-FREQ_USED: Interface Dot11Radio0, frequency 2432 selected

*Mar 1 00:00:22.778: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Mar 1 00:00:23.778: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up

*Mar 1 00:00:28.941: %LWAPP-5-CHANGED: LWAPP changed state to DISCOVERY

*Mar 1 00:00:28.975: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up

*Mar 1 00:00:28.981: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Mar 1 00:00:29.075: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Mar 1 00:00:29.077: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset

*Mar 1 00:00:29.178: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up

*Mar 1 00:00:30.178: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to up

*Mar 1 00:00:37.080: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0 assigned DHCP address 10.68.131.87, mask 255.255.128.0, hostname AP0007.0e2a.8232

Translating "CISCO-LWAPP-CONTROLLER.customerdomainnamehere.com"...domain server (10.68.2.2) [OK]

Hall of Fame Super Silver

Re: Cisco 4400 loosing its ap's at ap reboot!

Is the ap getting the correct ip address as shown in the log? 10.68.131.87

What IP Address is the management and ap-manager? If you have some ap's that are joined with the wlc and you have some that seem not to be on the wlc anymore, you can enable otap on the wlc and either reboot the ap via shutting down the power port or power cycleing the ap if you have a power injector or AC adapter (looks like it from the log). This way, the ap's can at least find the WLC by getting the mobility information from the other ap's. Make sure you disable otap after you are done.

Explain a bit more how you have the wlan setup.

Thanks!

-Scott
*** Please rate helpful posts ***
New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

I have attached 2 configs.

One when the ap works and on where i don't.

Hall of Fame Super Silver

Re: Cisco 4400 loosing its ap's at ap reboot!

Is the time on the WLC set correctly?

-Scott
*** Please rate helpful posts ***
New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

The time has been set from a ntp server.

The timezone information is missing though(+1)!

The ap's that connect do get the same time as the controller. the ones that dont connect or is restarted says 2002 something. Is time a sync factor of some kind?

Hall of Fame Super Silver

Re: Cisco 4400 loosing its ap's at ap reboot!

Could be... hard set the time on the WLC and also make sure you set the timezone. See if that helps or not. Just for kicks, also make sure that under ap polices you don't have authorize AP via AAA.

-Scott
*** Please rate helpful posts ***
New Member

Re: Cisco 4400 loosing its ap's at ap reboot!

Update!

Have uppdated to the newswest firmware! And have been sucsessfull with getting ap to rejoin after power outage or somthin like that.

I have recreated all wifi nets and connections after a

factory reset.

One thing that bothers me is that i cant get new ap's to join. (running master controller mode)

What kind of communicating are the ap/controler doing? unicast/broadcast/ip/udp?

controller ->

manager int: 10.23.1.40 /24

ap-manager: 10.23.1.41 /24

wifi-lan: 10.23.128.41 /17

Dhcp range for ap's

10.23.128-131.* /17

gw 10.23.128.1 (ap's can ping manager from there subnet)

dns 10.23.1.1 (and router on a stick

So final question, why dont ap get join respons frpm wlc?

Re: Cisco 4400 loosing its ap's at ap reboot!

Might be that you need to create another ap manager interface as an ap manager only supports 48 access points.

Try creating another and you will get more than 48 ap connected

Cheers

324
Views
0
Helpful
12
Replies
CreatePlease to create content