702 ap

[maged altwaiti]

hi >>>

The access point 702i disconnects automatically, and when I tracked the reason, the sys log appeared to me.
Can you help me solve this problem?

WLC model= 5508 , software ver = 8.5.182.0

*Dec 21 07:44:19.879: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0, changed state to down
*Dec 21 07:44:25.379: %LINK-6-UPDOWN: Interface BVI1, changed state to down
*Dec 21 07:44:26.379: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to down
*Dec 21 07:44:38.747: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.9.0.10:5246
*Dec 21 07:44:38.747: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio0 due to the reason code 27
*Dec 21 07:44:38.747: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio1 due to the reason code 27
*Dec 21 07:44:38.747: %WIDS-6-DISABLED: IDS Signature is removed and disabled.
*Dec 21 07:44:38.759: %CAPWAP-5-AP_EASYADMIN_INFO: AP Easy Admin information - EASY_ADMIN is not set, turn off easy admin service!

*Dec 21 07:44:38.759: %CAPWAP-5-AP_EASYADMIN_INFO: AP Easy Admin information - Easy Admin is not enabled, turn it off!

*Dec 21 07:44:38.799: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio0 due to the reason code 39
*Dec 21 07:44:38.799: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio1 due to the reason code 39
*Dec 21 07:44:38.823: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 21 07:44:39.823: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Dec 21 07:44:39.851: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 21 07:44:39.859: %LINK-6-UPDOWN: Interface Dot11Radio1, changed state to down
*Dec 21 07:44:39.867: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset
*Dec 21 07:44:40.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Dec 21 07:44:40.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to down
*Dec 21 07:44:40.887: %LINK-6-UPDOWN: Interface Dot11Radio1, changed state to up
*Dec 21 07:44:41.887: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to up
*Dec 21 07:45:37.447: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0, changed state to up
*Dec 21 07:45:38.759: %CDP_PD-4-POWER_OK: Full power - NEGOTIATED inline power sourceEthernet link changed to speed: 2, duplex 1

*Dec 21 07:45:46.563: %LINK-6-UPDOWN: Interface BVI1, changed state to up
*Dec 21 07:45:47.563: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to up
*Dec 21 07:45:52.799: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.22.31.121, mask 255.255.255.0, hostname B6-6th-03

Translating "CISCO-CAPWAP-CONTROLLER"...domain server (172.28.0.3) (172.28.10.10)

*Dec 21 07:46:00.467: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.9.0.10 obtained through DHCP
ip admission virtual-ip 0.0.0.0
^
% Invalid input detected at '^' marker.

*Dec 21 07:46:10.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.9.0.10 peer_port: 5246
*Dec 21 07:46:10.451: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.9.0.10 peer_port: 5246
*Dec 21 07:46:10.455: %CAPWAP-5-SENDJOIN: sending Join Request to 10.9.0.10Configure virtual IP Failed: ip admission virtual-ip 0.0.0.0
end

*Dec 21 07:46:10.779: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio0 due to the reason code 56
*Dec 21 07:46:10.823: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 21 07:46:10.831: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 21 07:46:11.419: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio1 due to the reason code 56
*Dec 21 07:46:11.427: %DOT11-5-EXPECTED_RADIO_RESET: Restarting Radio interface Dot11Radio0 due to the reason code 10
*Dec 21 07:46:11.467: %CAPWAP-5-JOINEDCONTROLLER: AP has joined controller Wireless Controller
*Dec 21 07:46:11.571: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 21 07:46:11.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Dec 21 07:46:11.975: %LINK-6-UPDOWN: Interface Dot11Radio1, changed state to down
*Dec 21 07:46:11.979: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset
*Dec 21 07:46:12.239: %WIDS-6-ENABLED: IDS Signature is loaded and enabled
*Dec 21 07:46:12.571: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to down
*Dec 21 07:46:12.879: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Dec 21 07:46:12.995: %DOT11-6-DFS_SCAN_START: DFS: Scanning frequency 5580 MHz for 60 seconds.
*Dec 21 07:46:12.999: %LINK-6-UPDOWN: Interface Dot11Radio1, changed state to up
*Dec 21 07:46:13.007: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 21 07:46:13.019: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 21 07:46:13.999: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to up
*Dec 21 07:46:14.007: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Dec 21 07:46:14.035: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 21 07:46:15.035: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up

[Flavio Miranda]

@maged altwaiti 

Seems to be a bug on version 8.5

https://bst.cisco.com/quickview/bug/CSCvn12858 

[MHM Cisco World]

downgrade Ver. to any ver below 8.5

MHM 

[Rich R]

CSCvn12858 says "This is unique to AP702W", @maged altwaiti says the AP is "702i" so technically should not affect this AP but it does look the same.

Upgrade to last available version of code for the 5508 - 8.5.182.12 (link below) to see whether that makes any difference.
Try reset the AP to factory default to see whether that helps.
If neither of those make any difference then as @MHM Cisco World says your only (terrible) option might be to downgrade to an older version of code (pre 8.5)!

The problem you have here is that the WLC, AP and software are all end of life, end of support so you have no choice but to live with bugs like this and use workarounds for them, or upgrade to supported hardware and software.