Not able send/receive TCP packets to/from http server using http_client sample

[vipindas1984]

Hi All,

I am currently working on establishing a thread network to communicate to our http server:https://mainnet.incubed.net/). In order to setting up that I took echo_client and http_client sample and adapted to our need. Below diagram is my network configuration with RPi connected with ethernet.

I was successful in pinging the http server from thread network. Here I wanted to send TCP packets to remote server via OT network.

Please find few logs from my thread end device.

[00:00:00.308,074] ieee802154_nrf5: nRF5 802154 radio initialized
[00:00:00.308,441] net_tcp: net_tcp_init: (main): Workq started. Thread ID: 0x20005428
[00:00:00.322,723] fs_nvs: 2 Sectors of 4096 bytes
[00:00:00.322,723] fs_nvs: alloc wra: 0, f48
[00:00:00.322,753] fs_nvs: data wra: 0, 1f4
[00:00:00.331,420] net_l2_openthread: State changed! Flags: 0x1007c300 Current role: disabled
[00:00:00.335,784] net_config: Initializing network
[00:00:00.335,784] net_config: Waiting interface 1 (0x20000ab0) to be up...
[00:00:30.336,486] net_config: Timeout while waiting network interface
[00:00:30.336,517] net_config: Network initialization failed (-115)
[00:00:30.336,944] in3_ot: Waiting for host to be ready to communicate
[00:00:30.341,064] usb_cdc_acm: Device suspended
[00:00:30.538,879] usb_cdc_acm: Device resumed
[00:00:30.655,090] usb_cdc_acm: Device suspended
[00:00:30.884,216] usb_cdc_acm: Device resumed
[00:00:30.943,786] usb_cdc_acm: Device configured
[00:00:41.255,187] net_l2_openthread: State changed! Flags: 0x10000000 Current role: disabled
[00:00:41.255,920] net_l2_openthread: State changed! Flags: 0x10000000 Current role: disabled
[00:00:41.257,019] net_l2_openthread: State changed! Flags: 0x00001000 Current role: disabled
[00:00:41.257,324] net_l2_openthread: State changed! Flags: 0x00000001 Current role: disabled
[00:00:41.257,507] net_l2_openthread: State changed! Flags: 0x00000008 Current role: disabled
[00:00:41.257,629] net_l2_openthread: State changed! Flags: 0x01000000 Current role: disabled
[00:00:41.257,751] net_l2_openthread: State changed! Flags: 0x00000004 Current role: detached
[00:00:41.257,904] net_l2_openthread: State changed! Flags: 0x00000001 Current role: detached
[00:00:41.258,148] net_l2_openthread: State changed! Flags: 0x00001000 Current role: detached
[00:00:41.258,392] net_l2_openthread: State changed! Flags: 0x00001000 Current role: detached
[00:00:41.258,636] net_l2_openthread: State changed! Flags: 0x00000010 Current role: detached
[00:00:41.259,002] net_l2_openthread: State changed! Flags: 0x00000020 Current role: detached
[00:00:41.490,570] net_l2_openthread: State changed! Flags: 0x00001084 Current role: router
[00:00:41.491,485] in3_ot: sendOpenThreadPing: Ping Server:
[00:00:41.491,516] in3_ot: printIpv6Address: Mesh Local EID Address: fd97.6739.093e.0002.0000.0000.a756.5ef8
[00:00:41.491,851] in3_ot: sendOpenThreadPing: ping send response:0
[00:00:41.492,065] http_client: in3_register_https_client: in3 register https
[00:00:41.524,871] http_client: setup_socket: Setup socket info: Server address: fd97:6739:93e:2:0:0:A756:5EF8
[00:00:41.525,085] net_tcp: tcp_conn_ref: (main): conn: 0x20031098, ref_count: 1
[00:00:41.525,115] net_tcp: tcp_conn_alloc: (main): conn: 0x20031098
[00:00:41.525,146] net_sock: zsock_socket_internal: (main): socket: ctx=0x200109f8, fd=0
[00:00:41.525,268] net_ctx: net_context_bind: (main): Context 0x200109f8 binding to TCP [::]:37464 iface 1 (0x20000ab0)
[00:00:41.525,360] net_tcp: net_tcp_connect: (main): context: 0x200109f8, local: ::, remote: fd97:6739:93e:2::a756:5ef8
[00:00:41.525,512] net_tcp: net_tcp_connect: (main): conn: 0x20031098 src: ::, dst: fd97:6739:93e:2::a756:5ef8
[00:00:41.525,634] net_conn: conn_register_debug: (main): [0x20010e94/6/2/0x3f] remote fd97:6739:93e:2::a756:5ef8/80
[00:00:41.525,665] net_conn: conn_register_debug: (main): local ::/37464 cb 0x16f05 ud 0x200109f8
[00:00:41.525,787] net_tcp: tcp_in: (main): [LISTEN Seq=1506709185 Ack=0]
[00:00:41.526,062] net_tcp: tcp_out_ext: (main): SYN Seq=1506709185 Len=0
[00:00:41.526,245] net_tcp: tcp_send_process_no_lock: (main): SYN Seq=1506709185 Len=0
[00:00:41.526,458] net_tcp: tcp_send: (main): SYN Seq=1506709185 Len=0
[00:00:41.526,824] net_tcp: tcp_in: (main): LISTEN->SYN_SENT
[00:00:41.551,513] net_l2_openthread: State changed! Flags: 0x00000200 Current role: router
[00:00:41.551,574] net_l2_openthread: State changed! Flags: 0x00000001 Current role: router
[00:00:41.742,004] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:41.742,218] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:41.957,550] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:41.957,763] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:42.173,095] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:42.173,309] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:42.388,610] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:42.388,824] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:42.604,156] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:42.604,370] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:42.819,702] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:42.819,946] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0
[00:00:43.035,247] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=1506709185 Len=0 in_retransmission
[00:00:43.035,461] net_tcp: tcp_send: (tcp_work): SYN Seq=1506709185 Len=0

[00:00:36.100,524] net_tcp: tcp_send: (tcp_work): SYN Seq=4280518776 Len=0
[00:00:36.326,812] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=4280518776 Len=0 in_retransmission
[00:00:36.327,026] net_tcp: tcp_send: (tcp_work): SYN Seq=4280518776 Len=0
[00:00:36.553,344] net_tcp: tcp_send_process_no_lock: (tcp_work): SYN Seq=4280518776 Len=0 in_retransmission
[00:00:36.553,375] net_tcp: tcp_conn_unref_debug: (tcp_work): conn: 0x20031098, ref_count=1 (tcp_send_process():568)
[00:00:36.553,405] net_tcp: tcp_conn_unref_debug: (tcp_work): conn: 0x20031098 is waiting on connect semaphore
[00:00:37.288,635] net_tcp: tcp_conn_unref_debug: (main): conn: 0x20031098, ref_count=1 (net_tcp_connect():2856)
[00:00:37.288,665] net_conn: net_conn_unregister: (main): Connection handler 0x20010e94 removed
[00:00:37.288,787] net_tcp: net_tcp_connect: (main): conn: 0x20031098, ret=-116
[00:00:37.288,818] http_client: Cannot connect to IPv6 remote (-116)
[00:00:37.288,848] http_client: Failed to connect to socket
[00:00:37.288,848] http_client: run_https_post: starting tcp failed
[00:00:37.373,229] http_client: setup_socket: Setup socket info: Server address: fd97:6739:93e:2:0:0:A756:5EF8
[00:00:37.373,413] net_tcp: tcp_conn_ref: (main): conn: 0x20031098, ref_count: 1
[00:00:37.373,443] net_tcp: tcp_conn_alloc: (main): conn: 0x20031098
[00:00:37.373,504] net_sock: zsock_socket_internal: (main): socket: ctx=0x20010a98, fd=1
[00:00:37.373,626] net_ctx: net_context_bind: (main): Context 0x20010a98 binding to TCP [::]:37159 iface 1 (0x20000ab0)
[00:00:37.373,748] net_tcp: net_tcp_connect: (main): context: 0x20010a98, local: ::, remote: fd97:6739:93e:2::a756:5ef8
[00:00:37.373,870] net_tcp: net_tcp_connect: (main): conn: 0x20031098 src: fd97:6739:93e:1:9356:10a6:172a:4184, dst: fd97:6739:93e:2::a756:5ef8
[00:00:37.373,992] net_conn: conn_register_debug: (main): [0x20010e94/6/2/0x3f] remote fd97:6739:93e:2::a756:5ef8/80
[00:00:37.374,053] net_conn: conn_register_debug: (main): local ::/37159 cb 0x16f05 ud 0x20010a98
[00:00:37.374,176] net_tcp: tcp_in: (main): [LISTEN Seq=326464843 Ack=0]
[00:00:37.374,450] net_tcp: tcp_out_ext: (main): SYN Seq=326464843 Len=0
[00:00:37.374,603] net_tcp: tcp_send_process_no_lock: (main): SYN Seq=326464843 Len=0
[00:00:37.374,816] net_tcp: tcp_send: (main): SYN Seq=326464843 Len=0
[00:00:37.375,579] net_tcp: tcp_in: (main): LISTEN->SYN_SENT
[00:00:37.471,466] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030448 src port 80 dst port 37159 family 2
[00:00:37.471,496] net_conn: net_conn_input: (rx_q[0]): [0x20010e94] match found cb 0x16f05 ud 0x20010a98 rank 0x3f
[00:00:37.471,832] net_tcp: tcp_in: (rx_q[0]): SYN,ACK Seq=192238644 Ack=326464844 Len=0 [SYN_SENT Seq=326464844 Ack=0]
[00:00:37.471,862] net_tcp: tcp_options_check: (rx_q[0]): len=4
[00:00:37.471,893] net_tcp: tcp_options_check: (rx_q[0]): opt: 2, opt_len: 4
[00:00:37.471,923] net_tcp: tcp_options_check: (rx_q[0]): MSS=1460
[00:00:37.471,954] net_tcp: tcp_in: (rx_q[0]): Lowering send window from 64240 to 1280
[00:00:37.471,984] net_tcp: tcp_window_full: (rx_q[0]): conn: 0x20031098 window_full=0
[00:00:37.472,137] net_tcp: tcp_send_timer_cancel: (rx_q[0]): SYN Seq=326464843 Len=0
[00:00:37.472,442] net_tcp: tcp_out_ext: (rx_q[0]): ACK Seq=326464844 Ack=192238645 Len=0
[00:00:37.472,625] net_tcp: tcp_send_process_no_lock: (rx_q[0]): ACK Seq=326464844 Ack=192238645 Len=0
[00:00:37.472,808] net_tcp: tcp_send: (rx_q[0]): ACK Seq=326464844 Ack=192238645 Len=0
[00:00:37.472,900] net_tcp: tcp_in: (rx_q[0]): SYN_SENT->ESTABLISHED
[00:00:37.473,144] net_tcp: net_tcp_connect: (main): conn: 0x20031098, ret=0
[00:00:37.473,205] net_tcp: net_tcp_recv: (main): context: 0x20010a98, cb: 0x9c5d, user_data: (nil)
[00:00:37.473,358] net_tcp: net_tcp_recv: (main): context: 0x20010a98, cb: 0x9c5d, user_data: (nil)
[00:00:37.473,510] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:00:37.473,541] net_tcp: net_tcp_queue_data: (main): conn: 0x20031098 Queued 75 bytes (total 75)
[00:00:37.473,571] net_tcp: tcp_unsent_len: (main): unsent_len=75

[00:01:09.119,964] net_tcp: tcp_out_ext: (main): SYN Seq=2522094062 Len=0
[00:01:09.120,117] net_tcp: tcp_send_process_no_lock: (main): SYN Seq=2522094062 Len=0
[00:01:09.120,330] net_tcp: tcp_send: (main): SYN Seq=2522094062 Len=0
[00:01:09.121,093] net_tcp: tcp_in: (main): LISTEN->SYN_SENT
[00:01:09.172,637] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030448 src port 80 dst port 65078 family 2
[00:01:09.172,668] net_conn: net_conn_input: (rx_q[0]): [0x20010e94] match found cb 0x16f05 ud 0x20010a98 rank 0x3f
[00:01:09.173,004] net_tcp: tcp_in: (rx_q[0]): SYN,ACK Seq=3955719044 Ack=2522094063 Len=0 [SYN_SENT Seq=2522094063 Ack=0]
[00:01:09.173,034] net_tcp: tcp_options_check: (rx_q[0]): len=4
[00:01:09.173,065] net_tcp: tcp_options_check: (rx_q[0]): opt: 2, opt_len: 4
[00:01:09.173,095] net_tcp: tcp_options_check: (rx_q[0]): MSS=1460
[00:01:09.173,126] net_tcp: tcp_in: (rx_q[0]): Lowering send window from 64240 to 1280
[00:01:09.173,156] net_tcp: tcp_window_full: (rx_q[0]): conn: 0x20031098 window_full=0
[00:01:09.173,339] net_tcp: tcp_send_timer_cancel: (rx_q[0]): SYN Seq=2522094062 Len=0
--- 21 messages dropped ---
[00:01:09.173,614] net_tcp: tcp_out_ext: (rx_q[0]): ACK Seq=2522094063 Ack=3955719045 Len=0
[00:01:09.173,828] net_tcp: tcp_send_process_no_lock: (rx_q[0]): ACK Seq=2522094063 Ack=3955719045 Len=0
[00:01:09.174,011] net_tcp: tcp_send: (rx_q[0]): ACK Seq=2522094063 Ack=3955719045 Len=0
--- 27 messages dropped ---
[00:01:09.174,133] net_tcp: tcp_in: (rx_q[0]): SYN_SENT->ESTABLISHED
[00:01:09.174,346] net_tcp: net_tcp_connect: (main): conn: 0x20031098, ret=0
[00:01:09.248,168] net_tcp: tcp_in: (rx_q[0]): ESTABLISHED->CLOSED
[00:01:09.248,229] net_tcp: tcp_conn_unref_debug: (rx_q[0]): conn: 0x20031098, ref_count=1 (tcp_in():2513)
[00:01:09.248,260] net_conn: net_conn_unregister: (rx_q[0]): Connection handler 0x20010e94 removed
[00:01:09.248,291] net_sock: zsock_received_cb: (rx_q[0]): ctx=0x20010a98, pkt=(nil), st=-104, user_data=(nil)
[00:01:09.409,240] net_tcp: tcp_options_check: (rx_q[0]): MSS=1460
--- 31 messages dropped ---
[00:01:09.409,271] net_tcp: tcp_in: (rx_q[0]): Lowering send window from 64240 to 1280
[00:01:09.409,301] net_tcp: tcp_window_full: (rx_q[0]): conn: 0x20031098 window_full=0
[00:01:09.409,484] net_tcp: tcp_send_timer_cancel: (rx_q[0]): SYN Seq=2790064174 Len=0
[00:01:09.409,759] net_tcp: tcp_out_ext: (rx_q[0]): ACK Seq=2790064175 Ack=1960114298 Len=0
--- 12 messages dropped ---
[00:01:09.491,424] net_sock: z_impl_zsock_close: (main): close: ctx=0x20010a98, fd=1
[00:01:09.491,455] net_tcp: net_tcp_recv: (main): context: 0x20010a98, cb: (nil), user_data: (nil)
[00:01:09.491,516] net_tcp: net_tcp_unref: (main): context: 0x20010a98, conn: (nil)
[00:01:09.491,546] net_ctx: net_context_unref: (main): Context 0x20010a98 released
[00:01:09.576,385] net_tcp: tcp_send: (main): SYN Seq=1024053545 Len=0
[00:01:09.576,507] net_tcp: tcp_in: (main): LISTEN->SYN_SENT
[00:01:09.579,071] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030518 src port 80 dst port 65485 family 2
[00:01:09.579,101] net_conn: net_conn_input: (rx_q[0]): No match found.
[00:01:09.647,186] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030518 src port 80 dst port 51242 family 2
[00:01:09.647,216] net_conn: net_conn_input: (rx_q[0]): [0x20010e94] match found cb 0x16f05 ud 0x20010a98 rank 0x3f
[00:01:09.647,552] net_tcp: tcp_in: (rx_q[0]): SYN,ACK Seq=901099195 Ack=1024053546 Len=0 [SYN_SENT Seq=1024053546 Ack=0]
[00:01:09.647,583] net_tcp: tcp_options_check: (rx_q[0]): len=4
[00:01:09.647,613] net_tcp: tcp_options_check: (rx_q[0]): opt: 2, opt_len: 4
[00:01:09.647,644] net_tcp: tcp_options_check: (rx_q[0]): MSS=1460
[00:01:09.647,674] net_tcp: tcp_in: (rx_q[0]): Lowering send window from 64240 to 1280
[00:01:09.647,705] net_tcp: tcp_window_full: (rx_q[0]): conn: 0x20031098 window_full=0
[00:01:09.647,857] net_tcp: tcp_send_timer_cancel: (rx_q[0]): SYN Seq=1024053545 Len=0
[00:01:09.648,162] net_tcp: tcp_out_ext: (rx_q[0]): ACK Seq=1024053546 Ack=901099196 Len=0
[00:01:09.648,376] net_tcp: tcp_send_process_no_lock: (rx_q[0]): ACK Seq=1024053546 Ack=901099196 Len=0
[00:01:09.648,559] net_tcp: tcp_send: (rx_q[0]): ACK Seq=1024053546 Ack=901099196 Len=0
[00:01:09.648,651] net_tcp: tcp_in: (rx_q[0]): SYN_SENT->ESTABLISHED
[00:01:09.648,864] net_tcp: net_tcp_connect: (main): conn: 0x20031098, ret=0
[00:01:09.648,925] net_tcp: net_tcp_recv: (main): context: 0x20010a98, cb: 0x9c5d, user_data: (nil)
[00:01:09.649,078] net_tcp: net_tcp_recv: (main): context: 0x20010a98, cb: 0x9c5d, user_data: (nil)
[00:01:09.649,230] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:01:09.649,261] net_tcp: net_tcp_queue_data: (main): conn: 0x20031098 Queued 75 bytes (total 75)
[00:01:09.649,261] net_tcp: tcp_unsent_len: (main): unsent_len=75
[00:01:09.649,658] net_tcp: tcp_out_ext: (main): ACK,PSH Seq=1024053546 Ack=901099196 Len=75
[00:01:09.649,841] net_tcp: tcp_send_process_no_lock: (main): ACK,PSH Seq=1024053546 Ack=901099196 Len=75
[00:01:09.650,054] net_tcp: tcp_send: (main): ACK,PSH Seq=1024053546 Ack=901099196 Len=75
[00:01:09.650,146] net_tcp: tcp_send_data: (main): conn: 0x20031098 total=75, unacked_len=75, send_win=1280, mss=1280
[00:01:09.650,177] net_tcp: tcp_send_data: (main): conn: 0x20031098 send_data_timer=0, send_data_retries=0
[00:01:09.650,207] net_tcp: tcp_unsent_len: (main): unsent_len=0
[00:01:09.650,268] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0

[00:03:33.441,802] net_tcp: tcp_conn_ref: (main): conn: 0x20031098, ref_count: 1
[00:03:33.441,833] net_tcp: tcp_conn_alloc: (main): conn: 0x20031098
[00:03:33.441,894] net_sock: zsock_socket_internal: (main): socket: ctx=0x200109f8, fd=0
[00:03:33.442,016] net_ctx: net_context_bind: (main): Context 0x200109f8 binding to TCP [::]:59799 iface 1 (0x20000ab0)
[00:03:33.442,138] net_tcp: net_tcp_connect: (main): context: 0x200109f8, local: ::, remote: fd97:6739:93e:2::a756:5ef8
[00:03:33.442,260] net_tcp: net_tcp_connect: (main): conn: 0x20031098 src: fd97:6739:93e:1:9356:10a6:172a:4184, dst: fd97:6739:93e:2::a756:5ef8
[00:03:33.442,413] net_conn: conn_register_debug: (main): [0x20010e94/6/2/0x3f] remote fd97:6739:93e:2::a756:5ef8/80
[00:03:33.442,443] net_conn: conn_register_debug: (main): local ::/59799 cb 0x16f05 ud 0x200109f8
[00:03:33.442,596] net_tcp: tcp_in: (main): [LISTEN Seq=3852373274 Ack=0]
[00:03:33.442,871] net_tcp: tcp_out_ext: (main): SYN Seq=3852373274 Len=0
[00:03:33.443,023] net_tcp: tcp_send_process_no_lock: (main): SYN Seq=3852373274 Len=0
[00:03:33.443,267] net_tcp: tcp_send: (main): SYN Seq=3852373274 Len=0
[00:03:33.443,389] net_tcp: tcp_in: (main): LISTEN->SYN_SENT
[00:03:33.445,404] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030448 src port 80 dst port 51731 family 2
[00:03:33.445,434] net_conn: net_conn_input: (rx_q[0]): No match found.
[00:03:33.556,335] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030448 src port 80 dst port 59799 family 2
[00:03:33.556,365] net_conn: net_conn_input: (rx_q[0]): [0x20010e94] match found cb 0x16f05 ud 0x200109f8 rank 0x3f
[00:03:33.556,732] net_tcp: tcp_in: (rx_q[0]): SYN,ACK Seq=1071215906 Ack=3852373275 Len=0 [SYN_SENT Seq=3852373275 Ack=0]
[00:03:33.556,762] net_tcp: tcp_options_check: (rx_q[0]): len=4
[00:03:33.556,793] net_tcp: tcp_options_check: (rx_q[0]): opt: 2, opt_len: 4
[00:03:33.556,823] net_tcp: tcp_options_check: (rx_q[0]): MSS=1460
[00:03:33.556,854] net_tcp: tcp_in: (rx_q[0]): Lowering send window from 64240 to 1280
[00:03:33.556,884] net_tcp: tcp_window_full: (rx_q[0]): conn: 0x20031098 window_full=0
[00:03:33.557,067] net_tcp: tcp_send_timer_cancel: (rx_q[0]): SYN Seq=3852373274 Len=0
[00:03:33.557,342] net_tcp: tcp_out_ext: (rx_q[0]): ACK Seq=3852373275 Ack=1071215907 Len=0
[00:03:33.557,556] net_tcp: tcp_send_process_no_lock: (rx_q[0]): ACK Seq=3852373275 Ack=1071215907 Len=0
[00:03:33.557,769] net_tcp: tcp_send: (rx_q[0]): ACK Seq=3852373275 Ack=1071215907 Len=0
[00:03:33.557,861] net_tcp: tcp_in: (rx_q[0]): SYN_SENT->ESTABLISHED
[00:03:33.558,105] net_tcp: net_tcp_connect: (main): conn: 0x20031098, ret=0
[00:03:33.558,166] net_tcp: net_tcp_recv: (main): context: 0x200109f8, cb: 0x9c5d, user_data: (nil)
[00:03:33.558,319] net_tcp: net_tcp_recv: (main): context: 0x200109f8, cb: 0x9c5d, user_data: (nil)
[00:03:33.558,441] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:03:33.558,471] net_tcp: net_tcp_queue_data: (main): conn: 0x20031098 Queued 75 bytes (total 75)
[00:03:33.558,502] net_tcp: tcp_unsent_len: (main): unsent_len=75
[00:03:33.558,898] net_tcp: tcp_out_ext: (main): ACK,PSH Seq=3852373275 Ack=1071215907 Len=75
[00:03:33.559,112] net_tcp: tcp_send_process_no_lock: (main): ACK,PSH Seq=3852373275 Ack=1071215907 Len=75
[00:03:33.559,326] net_tcp: tcp_send: (main): ACK,PSH Seq=3852373275 Ack=1071215907 Len=75
[00:03:33.559,417] net_tcp: tcp_send_data: (main): conn: 0x20031098 total=75, unacked_len=75, send_win=1280, mss=1280
[00:03:33.559,448] net_tcp: tcp_send_data: (main): conn: 0x20031098 send_data_timer=0, send_data_retries=0
[00:03:33.559,478] net_tcp: tcp_unsent_len: (main): unsent_len=0
[00:03:33.559,539] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:03:33.559,631] net_tcp: net_tcp_recv: (main): context: 0x200109f8, cb: 0x9c5d, user_data: (nil)
[00:03:33.559,753] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:03:33.559,783] net_tcp: net_tcp_queue_data: (main): conn: 0x20031098 Queued 7 bytes (total 82)
[00:03:33.559,814] net_tcp: tcp_unsent_len: (main): unsent_len=7
[00:03:33.559,844] net_tcp: tcp_unsent_len: (main): unsent_len=7
[00:03:33.559,906] net_tcp: tcp_window_full: (main): conn: 0x20031098 window_full=0
[00:03:33.636,505] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x20030448 src port 80 dst port 59799 family 2
[00:03:33.636,535] net_conn: net_conn_input: (rx_q[0]): [0x20010e94] match found cb 0x16f05 ud 0x200109f8 rank 0x3f
[00:03:33.636,871] net_tcp: tcp_in: (rx_q[0]): RST Seq=1071215907 Len=0 [ESTABLISHED Seq=3852373275 Ack=1071215907]
[00:03:33.636,901] net_tcp: tcp_in: (rx_q[0]): ESTABLISHED->CLOSED
[00:03:33.636,962] net_tcp: tcp_conn_unref_debug: (rx_q[0]): conn: 0x20031098, ref_count=1 (tcp_in():2513)
[00:03:33.637,023] net_conn: net_conn_unregister: (rx_q[0]): Connection handler 0x20010e94 removed
[00:03:33.637,054] net_sock: zsock_received_cb: (rx_q[0]): ctx=0x200109f8, pkt=(nil), st=-104, user_data=(nil)
[00:03:33.637,084] net_sock: zsock_received_cb: (rx_q[0]): Marked socket 0x200109f8 as peer-closed
[00:03:33.637,420] net_sock: zsock_recv_stream: (main): NULL return from fifo
[00:03:33.637,481] net_sock: z_impl_zsock_close: (main): close: ctx=0x200109f8, fd=0
[00:03:33.637,512] net_tcp: net_tcp_recv: (main): context: 0x200109f8, cb: (nil), user_data: (nil)
[00:03:33.637,573] net_tcp: net_tcp_unref: (main): context: 0x200109f8, conn: (nil)
[00:03:33.637,603] net_ctx: net_context_unref: (main): Context 0x200109f8 released
[00:03:33.694,519] main: main: Error sending rpc request: The request could not be send!
[00:03:33.696,563] net_conn: net_conn_input: (rx_q[0]): Check TCP listener for pkt 0x200304b0 src port 80 dst port 59799 family 2
[00:03:33.696,624] net_conn: net_conn_input: (rx_q[0]): No match found.
[00:03:44.043,151] net_l2_openthread: State changed! Flags: 0x00000064 Current role: router

Please take a look at this issue and make your suggestions/comments to solve the issue.

Zephyr Version: Zephyr version: 3.2.99
Zephyr toolchain version: zephyr 0.15.1

Regards

Vipin Das