I try to put new image from 8.5.135.0 to 8.10.171.0 on AP but for 4 AP of 86 I couldn't.
Here is log from AP
UK-AP07#Jun 16 14:35:42 kernel: [*06/16/2022 14:35:13.6832] ....Re-Tx Count=1, Max Re-Tx Value=8, SendSeqNum=32, NumofPendingMsgs=2
Jun 16 14:35:42 kernel: [*06/16/2022 14:35:42.5542]
Jun 16 14:35:47 kernel: [*06/16/2022 14:35:47.3027] Re-Tx Count=2, Max Re-Tx Value=8, SendSeqNum=32, NumofPendingMsgs=2
Jun 16 14:35:47 kernel: [*06/16/2022 14:35:47.3027]
Jun 16 14:35:52 kernel: [*06/16/2022 14:35:49.0822] .Re-Tx Count=3, Max Re-Tx Value=8, SendSeqNum=32, NumofPendingMsgs=2
Jun 16 14:35:52 kernel: [*06/16/2022 14:35:52.0612]
Jun 16 14:35:56 kernel: [*06/16/2022 14:35:56.8097] Re-Tx Count=4, Max Re-Tx Value=8, SendSeqNum=33, NumofPendingMsgs=3
Jun 16 14:35:56 kernel: [*06/16/2022 14:35:56.8097]
Jun 16 14:36:01 kernel: [*06/16/2022 14:35:57.9194] .Re-Tx Count=5, Max Re-Tx Value=8, SendSeqNum=33, NumofPendingMsgs=3
Jun 16 14:36:01 kernel: [*06/16/2022 14:36:01.5683]
Jun 16 14:36:06 kernel: [*06/16/2022 14:36:06.3168] Re-Tx Count=6, Max Re-Tx Value=8, SendSeqNum=36, NumofPendingMsgs=6
Jun 16 14:36:06 kernel: [*06/16/2022 14:36:06.3168]
Jun 16 14:36:11 kernel: [*06/16/2022 14:36:06.9166] .Re-Tx Count=7, Max Re-Tx Value=8, SendSeqNum=39, NumofPendingMsgs=9
Jun 16 14:36:11 kernel: [*06/16/2022 14:36:11.0653]
Jun 16 14:36:15 kernel: [*06/16/2022 14:36:15.7638] .Re-Tx Count=8, Max Re-Tx Value=8, SendSeqNum=42, NumofPendingMsgs=12
Jun 16 14:36:15 kernel: [*06/16/2022 14:36:15.8138]
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.5823] Re-Tx Count=9, Max Re-Tx Value=8, SendSeqNum=44, NumofPendingMsgs=14
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.5823]
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.5823] Max retransmission count exceeded, going back to DISCOVER mode.
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.5823]
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.5823] CAPWAP State: DTLS Teardown
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.8422] Dropping dtls packet since session is not established. Peer 192.168.30.10-5246, Local 172.16.227.152-5256, conn (nil)
Jun 16 14:36:20 kernel: [*06/16/2022 14:36:20.8422] Dropping dtls packet since session is not established. Peer 192.168.30.10-5246, Local 172.16.227.152-5256, conn (nil)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.6107] do ABORT, part2 is active part
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.6407] DOT11_DRV[0]: Stop Radio0
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.6507] DOT11_DRV[1]: Stop Radio1
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7607]
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7607] CAPWAP State: Discovery
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7607] Discovery Request sent to 192.168.30.10, discovery type STATIC_CONFIG(1)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7707] Discovery Request sent to 192.168.33.101, discovery type STATIC_CONFIG(1)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7707] Got WLC address 192.168.30.10 from DHCP.
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7707] Discovery Request sent to 192.168.30.10, discovery type STATIC_CONFIG(1)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7707] Discovery Request sent to 192.168.33.101, discovery type STATIC_CONFIG(1)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.7807] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.8107] Discovery Response from 192.168.30.10
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.8307] Discovery Response from 192.168.30.10
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.9506] Image pre-download aborted.
Jun 16 14:36:25 kernel: [*06/16/2022 14:36:25.9506] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Discovery(2).
Jun 16 14:36:26 kernel: [*06/16/2022 14:36:26.0000]
Jun 16 14:36:26 kernel: [*06/16/2022 14:36:26.0000] CAPWAP State: DTLS Setup
Jun 16 14:36:26 kernel: [*06/16/2022 14:36:26.1599]
Jun 16 14:36:26 kernel: [*06/16/2022 14:36:26.1599] CAPWAP State: Join
Jun 16 14:36:26 kernel: [*06/16/2022 14:36:26.1599] Sending Join request to 192.168.30.10 through port 5256
