Cisco 2602 won't connect to the controller

Hello,
i have a problem with my cisco 2602e lightweight/capwap access points. They won't connect anymore to the controller?
It seems to be that ap will connect ap as mesh ap on the controller? A few weeks ago everything was working fine with
these ap's and they are connecting as local access point. When i add the mac address as mic ap to the mac address
table the ap connects to ctl without problem. We have a lot of access points and i don't want to add all of them to the
ap mac address table.
AP Modell:                      Cisco 2602e
AP Version:                    System image file is "flash:/ap3g2-k9w8-mx.152-2.JB/ap3g2-k9w8-xx.152-2.JB"
Controller Type:               8510
Controller Software:          7.4.100.0
Controller IP:                    10.45.29.101
Serial Log from the Access Point without mac adding:
*Aug  8 11:53:18.999: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.45.29.101:5246
*Aug  8 11:53:19.051: %LWAPP-3-CLIENTERRORLOG: LWAPP LED Init: incorrect led state 255
*Aug  8 11:53:19.063: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to administratively down
*Aug  8 11:53:19.091: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:53:20.063: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:53:20.095: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:53:20.103: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:53:21.123: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:53:22.123: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed st        p
AP6c41.6a78.ceca#$flash:/ap3g2-k9w8-mx.152-2.JB/ap3g2-k9w8-xx.152-2.JB"
*Aug  8 11:53:29.091: %CAPWAP-3-ERRORLOG: Go join a capwap controller
*Aug  8 11:53:29.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.45.29.101 peer_port: 5246
*Aug  8 11:53:29.003: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:53:29.187: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:53:29.199: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.45.29.101 peer_port: 5246
*Aug  8 11:53:29.199: %CAPWAP-5-SENDJOIN: sending Join Request to 10.45.29.101
*Aug  8 11:53:29.199: %CAPWAP-3-ERRORLOG: Invalid event 10 & state 5 combination.
*Aug  8 11:53:29.199: %CAPWAP-3-ERRORLOG: CAPWAP SM handler: Failed to process message type 10 state 5.
*Aug  8 11:53:29.199: %CAPWAP-3-ERRORLOG: Failed to handle capwap control message from controller
*Aug  8 11:53:30.003: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:53:30.031: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:53:30.039: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:53:30.047: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:53:31.067: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:53:32.067: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Aug  8 11:53:34.199: %CAPWAP-5-SENDJOIN: sending Join Request to 10.45.29.101
*Aug  8 11:53:34.203: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:53:34.211: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:53:35.203: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:53:35.231: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:53:36.231: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Aug  8 11:54:19.175: %MESH-3-TIMER_EXPIRED: Mesh Lwapp join timer expired
*Aug  8 11:54:19.175: %MESH-3-TIMER_EXPIRED: Mesh Lwapp join failed expired
*Aug  8 11:54:19.175: %MESH-6-LINK_UPDOWN: Mesh station 6c41.6a78.ceca link Down
*Aug  8 11:54:21.175: %LINK-6-UPDOWN: Interface BVI1, changed state to down
*Aug  8 11:54:26.675: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to down
*Aug  8 11:54:28.999: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.45.29.101:5246
*Aug  8 11:54:32.067: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to administratively down
*Aug  8 11:54:32.083: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:54:33.067: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:54:33.107: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:54:33.115: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:54:34.135: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:54:35.135: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Aug  8 11:54:52.087: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:54:52.095: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:54:53.087: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:54:53.115: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:54:54.115: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Aug  8 11:54:59.567: %MESH-6-CAPWAP_RESTART: Mesh Capwap re-started
*Aug  8 11:55:01.567: %LINK-6-UPDOWN: Interface BVI1, changed state to up
*Aug  8 11:55:02.083: %CAPWAP-3-ERRORLOG: Invalid event 29 & state 4 combination.
*Aug  8 11:55:02.083: %CAPWAP-3-ERRORLOG: SM handler: Failed to process timer message. Event 29, state 4
*Aug  8 11:55:02.083: %CAPWAP-3-ERRORLOG: Failed to handle timer message.
*Aug  8 11:55:02.083: %CAPWAP-3-ERRORLOG: Failed to process timer message.
*Aug  8 11:55:02.567: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to up
*Aug  8 11:55:04.635: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to administratively down
*Aug  8 11:55:05.635: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:55:10.159: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:55:11.183: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:55:12.183: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Aug  8 11:55:13.279: %MESH-6-CAPWAP_RESTART: Mesh Capwap re-started
*Aug  8 11:55:13.343: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.36.9.58, mask 255.255.248.0, hostname AP6c41.6a78.ceca
*Aug  8 11:55:13.343: %MESH-6-CAPWAP_RESTART: Mesh Capwap re-started
*Aug  8 11:55:18.395: %LWAPP-3-CLIENTERRORLOG: LWAPP LED Init: incorrect led state 255
*Aug  8 11:55:18.407: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to administratively down
*Aug  8 11:55:18.435: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:55:19.407: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Aug  8 11:55:19.435: %CAPWAP-3-ERRORLOG: Did not get log server settings from DHCP.
*Aug  8 11:55:19.491: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:55:19.495: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:55:20.515: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:55:20.523: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Aug  8 11:55:20.531: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Aug  8 11:55:21.551: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Aug  8 11:55:22.551: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up

it looksl like that AP somehow got configured to be in MESH mode, you'll need to add it to the mac filter.  Once it joins you can then change the mode back to local and remove the filter entry.
HTH,
Steve
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    However names are not so easy as IP address.. nor as reliable. At least not in Yosemite they aren't. The domain can also be an issue if you are not plugged or wireless directly to the TC.
    6. Make sure IPv6 is set to link-local only in the computer. For example wireless open the network preferences, wireless and advanced / TCP/IP.. and fix the IPv6. to link-local only. Do the same for ethernet if you use it.
    There is a lot more jiggery pokery you can try but the above is a good start.. if you find it still unreliable.. don't be surprised.
    You might need to do some more work on the computer itself. eg Reset the PRAM.. has helped some people. Clean install of the OS is also helpful if you upgrade installed.
    Tell us how you go.
    Someone posted a solution.. See this thread.
    Macbook can't find Time Capsule anymore
    Start from the bottom and work up.. I have a list of good network practice changes but I have avoided Yosemites bug heaven.
    Yosemite has serious DNS bug in the networking application.. here is the lets say more arcane method of fixing it by doing a network transplant from mavericks.
    http://arstechnica.com/apple/2015/01/why-dns-in-os-x-10-10-is-broken-and-what-yo u-can-do-to-fix-it/
    Same thing applies to the Airport Extreme or the Express if used as router.. just replace TC in the instructions with AE.

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