Re: Cisco Aironet 1852 AP fails to work

Vencola · ‎01-31-2021

Dears,

I have problem with AIR-AP1852I-I-K9 it was working from 2 days, today i have if flush (RED), i have connected form console i have found the below and no user name or password appear

r no heartbeat fo r 180s
[*01/31/2021 07:58:38.6089] watchdogd: reading file /click/wdog_helper/ap_monpro c_sxpd: No such file or directory
[*01/31/2021 07:58:38.6089]
[*01/31/2021 07:58:38.6089] !!!!! {watchdogd} reading /click/wdog_helper/ap_monp roc_sxpd failed [2]: No such file or directory
[*01/31/2021 07:58:38.6089]
[*01/31/2021 07:58:38.6089] !!!!! {watchdogd} Process sxpd no heartbeat for 180s
[*01/31/2021 07:58:38.6389] ping: sendto: Network is unreachable
[*01/31/2021 07:58:52.2946] waiting for WCP to initialize
[*01/31/2021 07:58:52.2946] waiting for WCP to initialize

[*01/31/2021 07:58:52.2946] waiting for WCP to initialize
[*01/31/2021 07:58:52.2946] waiting for WCP to initialize
[*01/31/2021 07:58:52.2946] waiting for WCP to initialize
[*01/31/2021 07:58:52.2946] Socket Invalid Element wcp/wcp_db Handler has_rlan D ata 0 Length 10
[*01/31/2021 07:58:52.2946] Failed to load flex AP config from file. Default con fig will be used.
[*01/31/2021 07:58:52.2946] /usr/sbin/capwapd: opening /click/capwapvpndecap/cw_ decap/ap_standalone_mode failed!: No such file or directory
[*01/31/2021 07:58:52.2946]
[*01/31/2021 07:58:52.2946] !!!!! {/usr/sbin/capwapd} failed writing /click/capw apvpndecap/cw_decap/ap_standalone_mode len 4 data: "true"
[*01/31/2021 07:58:52.3046] /usr/sbin/capwapd: opening /click/decapnssmeta/ap_st andalone_mode failed!: No such file or directory
[*01/31/2021 07:58:52.3046]
[*01/31/2021 07:58:52.3046] !!!!! {/usr/sbin/capwapd} failed writing /click/deca pnssmeta/ap_standalone_mode len 4 data: "true"
[*01/31/2021 07:58:52.3046] Socket Invalid Element wcp/mesh_userspace/capwap Han dler set_ap_outdoor Data 0 Length 25
[*01/31/2021 07:58:52.3646] Socket Invalid Element wcp/mesh_userspace/capwap Han dler set_ap_I_domain Data 1 Length 25
[*01/31/2021 07:58:52.3646] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_g ateway: No such file or directory
[*01/31/2021 07:58:52.3646]
[*01/31/2021 07:58:52.3646] !!!!! {/usr/sbin/capwapd} reading /click/srcr2/gw/is _gateway failed [2]: No such file or directory
[*01/31/2021 07:58:53.3643] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_g ateway: No such file or directory

01/31/2021 08:03:17.7216] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:17.7216] Waiting for uplink IPv4 configuration
[*01/31/2021 08:03:17.7216] /usr/sbin/capwapd: opening /click/wdog_helper/ap_monproc_capwapd failed!: No such file or directory
[*01/31/2021 08:03:18.6813] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:19.8110] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:20.8107] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:21.8004] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:22.8001] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:22.8001] Waiting for uplink IPv4 configuration
[*01/31/2021 08:03:22.8001] /usr/sbin/capwapd: opening /click/wdog_helper/ap_monproc_capwapd failed!: No such file or directory
[*01/31/2021 08:03:23.8097] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:24.8094] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:25.8091] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:26.8088] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:27.8185] /usr/sbin/capwapd: reading file /click/srcr2/gw/is_gateway: No such file or directory
[*01/31/2021 08:03:27.8185] Waiting for uplink IPv4 configuration
[*01/31/2021 08:03:27.8185] /usr/sbin/capwapd: opening /click/wdog_helper/ap_monproc_capwapd failed!: No such file or directory
[*01/31/2021 08:03:28.8182] Resetting wired0 and restart DHCP client

I can't access it or edite just viewing.

Tyson Joachims · ‎01-31-2021

The first thing I noticed is the "Waiting for uplink IPv4 configuration" log. Has the switch port that this AP is connected to been modified recently? Can you verify the configuration of that port and ensure it is correctly configured? Is this the only AP acting this way in your network?

Vencola · ‎01-31-2021

@Tyson Joachims thanks for your replay,

Can you verify the configuration of that port and ensure it is correctly configured?

here the settings

nothing has been changed

interface GigabitEthernet1/0/1
switchport trunk native vlan 39
switchport mode trunk

Is this the only AP acting this way in your network?
i have 3 Access points, one of them working normally and the strange here there are another two that has the same problem on the same switch, I have changed them to other switch but the same problem.

Tyson Joachims · ‎01-31-2021

Can you swap this "broken" AP with an AP that is working? If the "broken" AP begins to work and the working AP stops working, we know the issue is likely on the switch or upstream from the switch. If the issue persists on the same AP and the working AP continues to work, we may need to look closer at the "broken" AP.

Vencola · ‎01-31-2021

@Tyson Joachims I have changed the broken one with the working one, and it is the same issue, i did not try the working on the switch.

the problem also, that i can't access the AP, just i am viewing the console.

i think the problem coming from the AP?! do you think that?

Leo Laohoo · ‎01-31-2021

What mode is the AP operating on? CAPWAP or Mobility Express?
What firmware is the AP running on?

Vencola · ‎02-01-2021

@Leo Laohoo thanks for your reply,

i would like to mention that, the AP not allow me to edit or add, it's just showing the above message and not changed, after some time it restarts and do the same sequence.

What mode is the AP operating on? CAPWAP or Mobility Express?
1. the old configuration it is working as CAPWAP
2. What mode is the AP operating on? would you please expalin!
What firmware is the AP running on?
1. Cisco Mobility Express- 8.10.142.0

Tyson Joachims · ‎02-01-2021

Now you mentioned that the LED on the AP is "flush" red. Is it blinking red or solid? If it's solid, this is a boot loader issue which might explain why we aren't able to do anything in the console besides read the logs.

If you unplug the power, reapply power, and watch the logs, do you see any lines that say "Image signing verification failure, not allowed to run..."? It would be super helpful if you could capture the entire startup and post that here (probably in a text file as an attachment since it will be long).

Some things you could try:

1. Reset the AP to factory defaults. Hold the mode button for less than 20 seconds. If you hold for more than 20 seconds but less than 60 seconds, you will delete all files on the internal flash (see option 2 if you deleted the flash).

2. Format the flash and upload a fresh AP image: https://community.cisco.com/t5/wireless-mobility-documents/access-point-rommon-recovery-ap-prompt-recovery-example/ta-p/3119495

Scott Fella · ‎02-02-2021

I agree.... you need to post the full output from when the ap boots up.

-Scott
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