Operational Status of AP stucks in downloading.

[subodh goyal]

WLC Model:- AIR-CT2504-K9
WLC Versio:- 8.5.140.0
AP model:- AIR-CAP2702E-B-K9
AP version:- 15.3(3)JF9

Country Code- US

Symptoms:

1. ICMP is reachable from WLC to AP

2. ICMP is reachable from POE to AP

3. Access is not available to AP by SSH or telnet

4. Operational Status of AP stucks in downloading when AP tries to associate with WLC.

USNMALB1004-ACC-AP21#show capwap client rcb
AdminState : ADMIN_ENABLED
SwVer : 8.5.140.0
NumFilledSlots : 2
Name : USNMALB1004-ACC-AP21
Location : default location
MwarName : USNMALB1004-L0-WC01
MwarApMgrIp : 10.42.115.8
MwarHwVer : 0.0.0.0
ApMode : Local
ApSubMode : Not Configured
OperationState : IMAGE
CAPWAP Path MTU : 1485
IPv6 Capwap UDPLite : Enabled
Link-Encryption (AP) : Disabled
Link-Encryption (MWAR) : Disabled
Prefer-mode : IPv4
LinkAuditing : disabled
AP Rogue Detection Mode : Enabled
AP Tcp MSS Adjust : Enabled
AP Tcp MSS size : 1250
Predownload Status : None
Auto Immune Status : Disabled
RA Guard Status : Disabled
Efficient Upgrade State : Disabled
Efficient Upgrade Role : None
TFTP Server : Disabled
Antenna Band Mode : Unknown
Universal AP Priming mode : Unprimed

[balaji.bandi]

Can you post a complete AP boot log connecting the console to AP. (reboot AP)

[DivakaranV]

post your boot log and we should be able to tell more precise. usually the download stops in me conversion because of code certificate expiry as said by David and there are field notes. but upgrading the me, some time you may need to go down to a capwap code level like 15.3.3.JPN1 and like that and try to upgrade then to me. also sometime your upgrade messed up your storage flash and there are filed notes you need to ubi the delete file system and create the storage again. good luck.

[Rich R]

@DivakaranV this thread has nothing to do with Mobility Express so you are way off topic here!
This was a CAPWAP AP plain and simple, affected by the issue in the field notice which has already been highlighted.

[David Ritter]

sounds suspiciously like:

IOS AP Image Download Fails Due to Expired
Image Signing Certificate Post December 4th,
2022 (CSCwd80290)

[Rich R]

David's answer is most likely correct but read through all the field notices and related links below for more detail. 

Upgrading to 8.5.182.7 will probably resolve your issue.