The is all I get from the output from your SOS7 firmware on the xenon.
0000000001 [system] TRACE: Last reset reason: 140 (data: 0x00)
0000000137 [net.ifapi] TRACE: LwIP started
0000000146 [ot.api] INFO: OpenThread version: OPENTHREAD/0.01.00; Xenon; Dec 14 2018 14:21:18
0000000149 [ot.api] INFO: Max transmit power: 8
0000000268 [ot.api] INFO: Network name: MESH1
0000000269 [ot.api] INFO: 802.15.4 channel: 11
0000000401 [ot.api] INFO: 802.15.4 PAN ID: 0x5733
0000000401 [net.th] INFO: Creating new LwIP OpenThread interface
0000000534 [net.ifapi] INFO: Netif th1 added
0000000536 [net.ifapi] INFO: Netif dm2 added
0000000536 [net.ifapi] INFO: Netif dm2 deleted
0000000668 [hal] TRACE: Heap: 54/171 Kbytes used
0000000668 [net.th] TRACE: OpenThread state changed: 17f333b
0000000805 [system.ctrl.ble] INFO: Device name: Xenon-KN8CML
0000000806 [system.nm] INFO: State changed: NONE -> DISABLED
0000000817 [system.nm] INFO: State changed: DISABLED -> IFACE_DOWN
0000000935 [system.nm] INFO: State changed: IFACE_DOWN -> IFACE_REQUEST_UP
0000001068 [net.ifapi] INFO: Netif th1 state UP
0000001069 [net.th] INFO: Bringing OpenThreadNetif down
0000001083 [net.th] INFO: Bringing OpenThreadNetif up
0000001201 [net.th] INFO: Network name: MESH1
0000001202 [net.th] INFO: 802.15.4 channel: 11
0000001334 [net.th] INFO: 802.15.4 PAN ID: 0x5733
0000001435 [system.nm] INFO: State changed: IFACE_REQUEST_UP -> IFACE_UP
0000001536 [net.th] TRACE: OpenThread state changed: 4
0000001536 [net.th] TRACE: OT_CHANGED_THREAD_ROLE
0000001537 [system.ot] INFO: Role changed: detached
0000002023 [net.th] TRACE: OpenThread state changed: 10e5
0000002023 [net.ifapi] INFO: Netif th1 link UP
0000002024 [system.nm] INFO: State changed: IFACE_UP -> IFACE_LINK_UP
0000002098 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002158 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002232 [net.th] TRACE: Added FD61:ECAE:8BB::FF:FE00:FC00 0
0000002291 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002365 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002425 [net.th] TRACE: Added FE80::ECEC:3F91:9C7A:4117 0
0000002498 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002558 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002632 [net.th] TRACE: Added FD61:ECAE:8BB:0:ED37:7A0D:5498:3149 0
0000002691 [net.th] TRACE: OT_CHANGED_IP6_ADDRESS_ADDED
0000002765 [net.th] TRACE: OT_CHANGED_THREAD_ROLE
0000002824 [net.th] TRACE: OT_CHANGED_THREAD_RLOC_ADDED
0000002898 [net.th] TRACE: OT_CHANGED_THREAD_RLOC_REMOVED
0000002958 [net.th] TRACE: OT_CHANGED_THREAD_PARTITION_ID
0000003032 [net.th] TRACE: OT_CHANGED_IP6_MULTICAST_SUBSRCRIBED
0000003091 [system.ot] TRACE: IPv6 address was added
0000003165 [system.ot] INFO: Role changed: leader
0000003165 [system.ot] TRACE: RLOC was added
0000003224 [system.ot] TRACE: RLOC was removed
0000003298 [system.ot] TRACE: Partition ID changed
0000003358 [system.ot] TRACE: Subscribed to IPv6 multicast address
0000003437 [comm] INFO: channel inited
0000003448 [net.th] TRACE: OpenThread state changed: 200
0000003491 [net.th] TRACE: OT_CHANGED_THREAD_NETDATA
0000003565 [net.th] TRACE: Candidate preferred prefix: FD1E:8C1F:8BC::/64, preference = Medium, RLOC16 = 9c00, preferred = 1, stable = 1
0000003699 [net.th] INFO: Switched over to a new preferred prefix: FD1E:8C1F:8BC::/64, preference = Medium, RLOC16 = 9c00, preferred = 1, stable = 1
0000003891 [hal] INFO: DNS server list changed
0000003892 [net.th] INFO: DNS server on mesh network: FD1E:8C1F:8BC::1
0000004024 [system.ot] TRACE: Thread network data changed
0000004099 [net.th] TRACE: OpenThread state changed: 1
0000004099 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000004158 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000004232 [system.nm] INFO: State changed: IFACE_LINK_UP -> IP_CONFIGURED
0000004365 [net.th] TRACE: Added FD1E:8C1F:8BC:0:FCD9:7A96:92C:A557 0
0000004424 [net.th] TRACE: OT_CHANGED_IP6_ADDRESS_ADDED
0000004498 [system.ot] TRACE: IPv6 address was added
0000004501 [system] INFO: Cloud: connecting
0000004559 [system] INFO: Read Server Address = type:1,domain:$id.udp-mesh.particle.io
0000004632 [system] INFO: Loaded cloud server address and port from session data
0000004765 [system] TRACE: Address type: 1
0000004766 [system] TRACE: Cloud socket=0, family=10, type=2, protocol=17
0000004898 [system] INFO: Cloud socket=0, connecting to 64:FF9B::36E3:ABAB#5684
0000004958 [system] TRACE: Cloud socket=0, connected to 64:FF9B::36E3:ABAB#5684
0000005032 [system] TRACE: Updating cloud keepalive for AF_INET6: 30000 -> 30000
0000005165 [system] TRACE: Applying new keepalive interval now
0000005166 [system] INFO: Cloud socket connected
0000005225 [system] INFO: Starting handshake: presense_announce=0
0000005299 [comm.protocol.handshake] INFO: Establish secure connection
0000005549 [comm.dtls] INFO: (CMPL,RENEG,NO_SESS,ERR) restoreStatus=0
0000005549 [comm.dtls] INFO: out_ctr 0,1,0,0,0,0,0,25, next_coap_id=11
0000005625 [comm.dtls] INFO: app state crc: cached: 87f5edde, actual: 5cdd4e9d
0000005683 [comm.dtls] INFO: restored session from persisted session data. next_msg_id=17
0000005758 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 2
0000005817 [comm.protocol.handshake] INFO: Sending HELLO message
0000006205 [comm.protocol.handshake] INFO: Handshake completed
0000006206 [system] INFO: Send spark/hardware/max_binary event
0000006210 [system] INFO: Send spark/device/last_reset event
0000006341 [system] INFO: Send subscriptions
0000006342 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 4
0000006473 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 3
0000006474 [comm] INFO: Sending TIME request
0000006608 [comm.protocol] INFO: Sending 'M' describe message
0000006609 [comm.protocol] INFO: rcv'd message type=1
0000006740 [system] INFO: Cloud connected
0000006740 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000006749 [comm.protocol] INFO: message id 20 complete with code 0.00
0000006873 [comm.protocol] INFO: rcv'd message type=13
0000006883 [system] TRACE: Updating cloud keepalive for AF_INET6: 30000 -> 30000
0000007007 [system] TRACE: Applying new keepalive interval now
0000007140 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000007140 [comm.protocol] INFO: message id 21 complete with code 0.00
0000007273 [comm.protocol] INFO: rcv'd message type=13
0000007883 [comm.protocol] TRACE: Reply recieved: type=2, code=69
0000007883 [comm.protocol] INFO: message id 22 complete with code 2.05
0000007936 [comm.protocol] INFO: Received TIME response: 1544780577
0000008017 [comm.protocol] INFO: rcv'd message type=12
0000008883 [comm] INFO: Forcing a cloud ping
0000009068 [comm.protocol] INFO: Sending 'S' describe message
0000009072 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 4
0000009318 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 3
0000009318 [comm.protocol] INFO: rcv'd message type=1
0000009883 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000009883 [comm.protocol] INFO: message id 23 complete with code 0.00
0000010016 [comm.protocol] INFO: rcv'd message type=13
0000010882 [comm] INFO: Forcing a cloud ping
0000010884 [comm.protocol] INFO: Sending 'A' describe message
0000010886 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 4
0000010948 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 3
0000011064 [comm.protocol] INFO: rcv'd message type=1
0000012067 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000012068 [comm.protocol] INFO: message id 24 complete with code 0.00
0000012089 [comm.protocol] INFO: rcv'd message type=13
0000013066 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000013066 [comm.protocol] INFO: message id 19 complete with code 0.00
0000013152 [comm.protocol] INFO: rcv'd message type=13
0000044067 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000044067 [comm.protocol] INFO: message id 25 complete with code 0.00
0000044085 [comm.protocol] INFO: rcv'd message type=13
0000075068 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000075068 [comm.protocol] INFO: message id 26 complete with code 0.00
0000075150 [comm.protocol] INFO: rcv'd message type=13
0000106153 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000106153 [comm.protocol] INFO: message id 27 complete with code 0.00
0000106166 [comm.protocol] INFO: rcv'd message type=13
0000000001 [system] INFO: Device e00fce680ce097caaa31e5fa started
0000000001 [system] TRACE: Last reset reason: 130 (data: 0x0a)
0000000137 [net.ifapi] TRACE: LwIP started
0000000146 [ot.api] INFO: OpenThread version: OPENTHREAD/0.01.00; Xenon; Dec 14 2018 14:21:18
0000000149 [ot.api] INFO: Max transmit power: 8
0000000268 [ot.api] INFO: Network name: MESH1
0000000269 [ot.api] INFO: 802.15.4 channel: 11
0000000401 [ot.api] INFO: 802.15.4 PAN ID: 0x5733
0000000401 [net.th] INFO: Creating new LwIP OpenThread interface
0000000534 [net.ifapi] INFO: Netif th1 added
0000000536 [net.ifapi] INFO: Netif dm2 added
0000000536 [net.ifapi] INFO: Netif dm2 deleted
0000000668 [hal] TRACE: Heap: 54/171 Kbytes used
0000000668 [net.th] TRACE: OpenThread state changed: 17f333b
0000000805 [system.ctrl.ble] INFO: Device name: Xenon-KN8CML
0000000806 [system.nm] INFO: State changed: NONE -> DISABLED
0000000817 [system.nm] INFO: State changed: DISABLED -> IFACE_DOWN
0000000935 [system.nm] INFO: State changed: IFACE_DOWN -> IFACE_REQUEST_UP
0000001068 [net.ifapi] INFO: Netif th1 state UP
0000001069 [net.th] INFO: Bringing OpenThreadNetif down
0000001083 [net.th] INFO: Bringing OpenThreadNetif up
0000001201 [net.th] INFO: Network name: MESH1
0000001202 [net.th] INFO: 802.15.4 channel: 11
0000001335 [net.th] INFO: 802.15.4 PAN ID: 0x5733
0000001435 [system.nm] INFO: State changed: IFACE_REQUEST_UP -> IFACE_UP
0000001538 [net.th] TRACE: OpenThread state changed: 4
0000001538 [net.th] TRACE: OT_CHANGED_THREAD_ROLE
0000001538 [system.ot] INFO: Role changed: detached
0000002025 [net.th] TRACE: OpenThread state changed: 10e5
0000002025 [net.ifapi] INFO: Netif th1 link UP
0000002026 [system.nm] INFO: State changed: IFACE_UP -> IFACE_LINK_UP
0000002101 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002160 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002234 [net.th] TRACE: Added FD61:ECAE:8BB::FF:FE00:FC00 0
0000002293 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002367 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002427 [net.th] TRACE: Added FE80::ECEC:3F91:9C7A:4117 0
0000002500 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002560 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000002634 [net.th] TRACE: Added FD61:ECAE:8BB:0:ED37:7A0D:5498:3149 0
0000002693 [net.th] TRACE: OT_CHANGED_IP6_ADDRESS_ADDED
0000002767 [net.th] TRACE: OT_CHANGED_THREAD_ROLE
0000002826 [net.th] TRACE: OT_CHANGED_THREAD_RLOC_ADDED
0000002900 [net.th] TRACE: OT_CHANGED_THREAD_RLOC_REMOVED
0000002960 [net.th] TRACE: OT_CHANGED_THREAD_PARTITION_ID
0000003034 [net.th] TRACE: OT_CHANGED_IP6_MULTICAST_SUBSRCRIBED
0000003093 [system.ot] TRACE: IPv6 address was added
0000003167 [system.ot] INFO: Role changed: leader
0000003167 [system.ot] TRACE: RLOC was added
0000003226 [system.ot] TRACE: RLOC was removed
0000003300 [system.ot] TRACE: Partition ID changed
0000003360 [system.ot] TRACE: Subscribed to IPv6 multicast address
0000003439 [comm] INFO: channel inited
0000003457 [net.th] TRACE: OpenThread state changed: 200
0000003493 [net.th] TRACE: OT_CHANGED_THREAD_NETDATA
0000003567 [net.th] TRACE: Candidate preferred prefix: FD1E:8C1F:8BC::/64, preference = Medium, RLOC16 = 9c00, preferred = 1, stable = 1
0000003701 [net.th] INFO: Switched over to a new preferred prefix: FD1E:8C1F:8BC::/64, preference = Medium, RLOC16 = 9c00, preferred = 1, stable = 1
0000003893 [hal] INFO: DNS server list changed
0000003894 [net.th] INFO: DNS server on mesh network: FD1E:8C1F:8BC::1
0000004026 [system.ot] TRACE: Thread network data changed
0000004102 [net.th] TRACE: OpenThread state changed: 1
0000004103 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000004161 [net.ifapi] TRACE: Netif th1 ipv6 addr state changed
0000004235 [system.nm] INFO: State changed: IFACE_LINK_UP -> IP_CONFIGURED
0000004367 [net.th] TRACE: Added FD1E:8C1F:8BC:0:F1FC:D97A:9609:2CA5 0
0000004426 [net.th] TRACE: OT_CHANGED_IP6_ADDRESS_ADDED
0000004500 [system.ot] TRACE: IPv6 address was added
0000004502 [system] INFO: Cloud: connecting
0000004561 [system] INFO: Read Server Address = type:1,domain:$id.udp-mesh.particle.io
0000004634 [system] INFO: Loaded cloud server address and port from session data
0000004767 [system] TRACE: Address type: 1
0000004768 [system] TRACE: Cloud socket=0, family=10, type=2, protocol=17
0000004901 [system] INFO: Cloud socket=0, connecting to 64:FF9B::36E3:ABAB#5684
0000004960 [system] TRACE: Cloud socket=0, connected to 64:FF9B::36E3:ABAB#5684
0000005034 [system] TRACE: Updating cloud keepalive for AF_INET6: 30000 -> 30000
0000005167 [system] TRACE: Applying new keepalive interval now
0000005168 [system] INFO: Cloud socket connected
0000005227 [system] INFO: Starting handshake: presense_announce=0
0000005301 [comm.protocol.handshake] INFO: Establish secure connection
0000005551 [comm.dtls] INFO: (CMPL,RENEG,NO_SESS,ERR) restoreStatus=0
0000005551 [comm.dtls] INFO: out_ctr 0,1,0,0,0,0,0,39, next_coap_id=1b
0000005626 [comm.dtls] INFO: app state crc: cached: 5cdd4e9d, actual: 5cdd4e9d
0000005685 [comm.dtls] WARN: skipping hello message
0000005759 [comm.dtls] INFO: restored session from persisted session data. next_msg_id=27
0000005819 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 2
0000005893 [comm.protocol.handshake] INFO: resumed session - not sending HELLO message
0000006028 [system] INFO: Send spark/hardware/max_binary event
0000006087 [system] INFO: Send spark/device/last_reset event
0000006161 [system] INFO: Send subscriptions
0000006162 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 4
0000006219 [comm.dtls] INFO: session cmd (CLS,DIS,MOV,LOD,SAV): 3
0000006293 [comm] INFO: Sending TIME request
0000006354 [system] INFO: Cloud connected
0000007429 [system] TRACE: Updating cloud keepalive for AF_INET6: 30000 -> 30000
0000007429 [system] TRACE: Applying new keepalive interval now
0000007482 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000007563 [comm.protocol] INFO: message id 28 complete with code 0.00
0000007615 [comm.protocol] INFO: rcv'd message type=13
0000008429 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000008429 [comm.protocol] INFO: message id 29 complete with code 0.00
0000008528 [comm.protocol] INFO: rcv'd message type=13
0000009429 [comm] INFO: Forcing a cloud ping
0000009431 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000009431 [comm.protocol] INFO: message id 30 complete with code 0.00
0000009563 [comm.protocol] INFO: rcv'd message type=13