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Community Member

Issue with 1231 AP's rebooting

On one site we have 12 cisco AIR-AP1231G-E-K9 AP's running IOS Version 12.3(2)JA4. They are accessing a variety of applications from RF scanning to PDA's.

this is standard across the company but we are having problems with 10 of these rebooting due to the following error message

System returned to ROM by unknown reload cause - reason ptr 0xF, PC 0x445DE4, address 0x0

Within the crash file we see the following error

Nov 2 11:25:31 GMT0: %DOT11-6-ASSOC: Interface Dot11Radio0, Station 0015.7050.d1d2 Associated KEY_MGMT[NONE]

Unexpected exception to CPUvector 2000, PC = 0x445DE4 , LR = 0x445DD8

-Traceback= 445DE4 44136C 443174 440DD8 43F310 4C1CC4 4C23DC 4C4440 4C4524 1357B0

CPU Register Context:

MSR = 0x00029210 CR = 0x44000004 CTR = 0x00000000 XER = 0x2000000C

R0 = 0x00000015 R1 = 0x00C11AA8 R2 = 0x00000000 R3 = 0x00C02A44

R4 = 0x00007050 R5 = 0x0000D247 R6 = 0x00C02A8C R7 = 0x00A3FD54

R8 = 0x7050D247 R9 = 0x00000000 R10 = 0x00000015 R11 = 0x00000000

R12 = 0x84000004 R13 = 0x00000000 R14 = 0x00000000 R15 = 0x00000000

R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x00000000

R20 = 0x00000000 R21 = 0x00000000 R22 = 0x00000000 R23 = 0x00000000

R24 = 0x00000001 R25 = 0x0043ED94 R26 = 0x00C02B3F R27 = 0x00000010

R28 = 0x009C0000 R29 = 0x00C02A44 R30 = 0x00000000 R31 = 0x00A3FD48

This error is consisent on all the AP's

We have checked on all resources and can not find a cause for this error and the support company we use are not finding this.

Could anyone advise ?



Hall of Fame Super Silver

Re: Issue with 1231 AP's rebooting

I would reload the IOS back on or try another version. If that doesn't work, I wold open up a TAC case and maybe those have to get RMA'd.

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Community Member

Re: Issue with 1231 AP's rebooting

thanks for the advice but we have over 100 AP's at different locations with the same version and AP and we do not have the same issue with any of these. This is why so far we have not reloaded the IOS.


Re: Issue with 1231 AP's rebooting

Hi Ian,

The fact that the error is consistent on 10 of the 12 APs at one location and nowhere else would cause me to look at the switch ports the APs are connected to.

I would check the power being supplied to the APs. If you are doing power over ethernet and the line card is pre-standard 802.3af then you will see your APs reboot.

Just my 2 cents.

Let the forum know how you resolve the problem.



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