[SR-Users] Re: TCP/TLS connection (id: 0) for WebSocket could not be found

Hello, difficult to say why the connection seems to be not available anymore. Have you already tried to capture some traces for that on a network level? Its probably difficult if it’s happens only after a day or so, but might worth a try. Cheers, Henning From: Joey Golan &lt;joeygo(a)gmail.com&gt; Sent: Samstag, 15. April 2023 18:31 To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: [SR-Users] Re: TCP/TLS connection (id: 0) for WebSocket could not be found Anyone? On Apr 2, 2023 at 10:45 AM, <Joey Golan<mailto:joeygo@gmail.com>> wrote: Hello, I have 2 clients. 1 using websocket and 1 mobile using TLS. Both can call each other perfectly. After 24-48 hours calls from mobile to websocket failed with an error message: TCP/TLS connection (id: 0) for WebSocket could not be found. At the same time I can make calls from the websocket client to the mobile. I know that the search of the connection is done by target address so I printed the addresses + ports and they are matched to the ones that appear on the ul.dump and ws.dump. kamcmd ul.dump output: Info: { AoR: usrmt63ly_1040 HashID: 1830036546 Contacts: { Contact: { Address: sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>;transport=ws Expires: 283 Q: -1 Call-ID: tvne1pskgkm2a01pnqm677 CSeq: 1060 User-Agent: JsSIP 3.9.0 Received: sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws Path: <sip:10.218.154.228:50443;transport=ws;received=sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws;lr> State: CS_NEW Flags: 0 CFlags: 64 Socket: tls:10.218.154.228:50443<http://10.218.154.228:50443> Methods: 7071 Ruid: uloc-61ebba84-64242101-89ba-1 Instance: <urn:uuid:7573726d-7436-116c-915f-313034304077> Reg-Id: 1 Server-Id: 1642838660 Tcpconn-Id: 100420 Keepalive: 1 Last-Keepalive: 1680417282 KA-Roundtrip: 0 Last-Modified: 1680417282 } } } kamcmd ws.dump { connections: { 100420: wss:10.218.51.86:24061<http://10.218.51.86:24061> -> wss:10.218.154.228:50443<http://10.218.154.228:50443> (state: OPEN, last used 14s ago, sub-protocol: sip) } info: { wscounter: 1 truncated: no } } Call from mobile (TLS) to websocket: Failed with error message: TCP/TLS connection (id: 0) for WebSocket could not be found 30(35263) INFO: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} <script>: request_route: method [INVITE] from [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] socket [sip:10.218.51.86:50909;transport=tls] to [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] 30(35263) INFO: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} <script>: [RELAY]: method [INVITE] from [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] socket [sip:10.218.51.86:50909;transport=tls] to [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] socket [sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws] 30(35263) WARNING: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} <core> [core/msg_translator.c:2863]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found 30(35263) ERROR: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} <core> [core/msg_translator.c:2040]: build_req_buf_from_sip_req(): could not create Via header 30(35263) ERROR: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} tm [t_fwd.c:479]: prepare_new_uac(): could not build request 30(35263) ERROR: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} tm [t_fwd.c:1759]: t_forward_nonack(): failure to add branches 30(35263) ERROR: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} sl [sl_funcs.c:418]: sl_reply_error(): stateless error reply used: No error (2/SL) 30(35263) NOTICE: {1 2563 INVITE 4248c155-cd92-49b8-b68a-eef5f2cb3e88} acc [acc.c:287]: acc_log_request(): ACC: call missed: timestamp=1680417920;method=INVITE;from_tag=e168ffa6-e577-48ec-b9c9-a73f5be318e8;to_tag=0c3e625e9f223a7ee2b093e8e31b2526-b7165bcb;call_id=4248c155-cd92-49b8-b68a-eef5f2cb3e88;code=500;reason=Server Internal Error;src_user=usrrcv4o4_1040;src_domain=example.com<http://example.com>;src_ip=10.218.51.86;dst_ouser=usrmt63ly_1040;dst_user=usrmt63ly_1040;dst_domain=example.com<http://example.com> Call from websocket to mobile (TLS): 38(35271) INFO: {1 7488 INVITE urcnete8r71dpkhmngd8} <script>: request_route: method [INVITE] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] socket [sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] 38(35271) INFO: {1 7488 INVITE urcnete8r71dpkhmngd8} <script>: [RELAY]: method [INVITE] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] socket [sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] socket [sip:10.218.51.86:20674;transport=tls] 39(35272) INFO: {2 7488 INVITE urcnete8r71dpkhmngd8} <script>: onreply_route[MANAGE_REPLY] method [INVITE] code [100] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] 39(35272) INFO: {2 7488 INVITE urcnete8r71dpkhmngd8} <script>: onreply_route[MANAGE_REPLY] method [INVITE] code [200] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] 39(35272) NOTICE: {2 7488 INVITE urcnete8r71dpkhmngd8} acc [acc.c:287]: acc_log_request(): ACC: transaction answered: timestamp=1680417926;method=INVITE;from_tag=18q0p37nfo;to_tag=a88272a0-25ca-43c2-8ce9-8615831b7e9a;call_id=urcnete8r71dpkhmngd8;code=200;reason=OK;src_user=usrmt63ly_1040;src_domain=example.com<http://example.com>;src_ip=10.218.51.86;dst_ouser=usrrcv4o4_1040;dst_user=usrrcv4o4_1040;dst_domain=10.218.51.86 38(35271) INFO: {1 7488 ACK urcnete8r71dpkhmngd8} <script>: request_route: method [ACK] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] socket [sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] 38(35271) INFO: {1 7488 ACK urcnete8r71dpkhmngd8} <script>: [RELAY]: method [ACK] from [sip:usrmt63ly_1040@example.com<mailto:sip%3Ausrmt63ly_1040@example.com>] socket [sip:10.218.51.86:24061<http://10.218.51.86:24061>;transport=ws] to [sip:usrrcv4o4_1040@example.com<mailto:sip%3Ausrrcv4o4_1040@example.com>] socket [sip:10.218.51.86:20674;transport=tls] Version: kamailio 5.6.2 (x86_64/linux) What could be the reason for that? Your help would be much appreciated. Thanks, Joey.