https://devzone.nordicsemi.com/f/nordic-q-a/85138/serial-modem-at-http-response-seemingly-missing-corrupt-data-on-large-transfers-100kOur device has both a 9160 and a 52840 on it. The 9160 is running the stock serial modem firmware on it. The 52840 is running a custom handler for AT connection targeted to AT HTTP. We issue a #XHTTPCREQ to connect to a http server and then attempten-USTelligent Community 13Tue, 01 Mar 2022 15:36:23 GMThttps://devzone.nordicsemi.com/thread/355627?ContentTypeID=1Tue, 01 Mar 2022 15:36:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:18de985e-0038-41a1-8caa-e2846be36dfbCharlie<p><span>Hi Christopher,</span></p> [quote user="ccasebeer"]<p>Do you think I&quot;ll get to see every byte that comes back in a 130k HTTP request, all in one payload?</p> <p></p>[/quote] <p>Yes, but not in one payload, the max packet payload is 1024 Byte by default, it will get several&nbsp;<span>packets&nbsp;for a big HTTP request response.</span></p> <div> <div>[quote user="ccasebeer"]I see lots of dropped messages when investigating the LTE Modem software using RTT viewer.[/quote] <p>I also see the dropped messages, I think it is due to RTT configuration. Set &quot;<span>CONFIG_LOG_MODE_IMMEDIATE</span><span>=y</span>&quot; solve the problem on my side.</p> <p>Here you can find my test log with Link Monitor and RTT viewer. The HTTP response is 2238 Byte.</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/2022_2D00_03_2D00_01T15_5F00_28_5F00_25.274Z_2D00_log.txt">devzone.nordicsemi.com/.../2022_2D00_03_2D00_01T15_5F00_28_5F00_25.274Z_2D00_log.txt</a><pre class="ui-code" data-mode="text">00&gt; *** Booting Zephyr OS build v2.7.99-ncs1 *** 00&gt; 00&gt; [00:00:00.201,782] &lt;inf&gt; slm: Serial LTE Modem 00&gt; [00:00:00.228,179] &lt;inf&gt; slm_at_host: at_host init done (Connection lost) 00&gt; *** Booting Zephyr OS build v2.7.99-ncs1 *** 00&gt; 00&gt; [00:00:00.201,782] &lt;inf&gt; slm: Serial LTE Modem 00&gt; [00:00:00.219,238] &lt;dbg&gt; slm_at_host.TX 00&gt; 52 65 61 64 79 0d 0a |Ready.. 00&gt; [00:00:00.220,855] &lt;dbg&gt; slm_fota.slm_fota_post_process: FOTA result 0,0,0 00&gt; [00:00:00.230,499] &lt;inf&gt; slm_at_host: at_host init done 00&gt; [00:00:14.394,165] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 54 2b 43 46 55 4e 3f |AT+CFUN? 00&gt; [00:00:14.402,252] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a |.. 00&gt; [00:00:14.403,594] &lt;dbg&gt; slm_at_host.TX 00&gt; 2b 43 46 55 4e 3a 20 30 0d 0a 4f 4b 0d 0a |+CFUN: 0 ..OK.. 00&gt; [00:00:21.147,033] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:00:21.147,552] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 2b 43 46 55 4e 3d 31 |AT+CFUN= 1 00&gt; [00:00:21.184,753] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a |.. 00&gt; [00:00:21.185,577] &lt;dbg&gt; slm_at_host.TX 00&gt; 4f 4b 0d 0a |OK.. 00&gt; [00:00:22.435,821] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:00:22.436,340] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 2b 43 46 55 4e 3f |AT+CFUN? 00&gt; [00:00:22.437,957] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a |.. 00&gt; [00:00:22.438,781] &lt;dbg&gt; slm_at_host.TX 00&gt; 2b 43 46 55 4e 3a 20 31 0d 0a 4f 4b 0d 0a |+CFUN: 1 ..OK.. 00&gt; [00:00:24.435,455] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:00:24.435,943] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 43 4f 4e 3f |AT#XHTTP CCON? 00&gt; [00:00:24.437,530] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 43 4f 4e 3a 20 30 2c |..#XHTTP CCON: 0, 00&gt; 22 22 2c 30 2c 30 0d 0a |&quot;&quot;,0,0.. 00&gt; [00:00:24.439,483] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:00:27.309,631] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:00:27.310,150] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 43 4f 4e 3d 31 2c 22 |AT#XHTTP CCON=1,&quot; 00&gt; 6e 65 76 65 72 73 73 6c 2e 63 6f 6d 22 2c 38 30 |neverssl .com&quot;,80 00&gt; [00:00:27.319,183] &lt;dbg&gt; slm_httpc.do_http_connect: Configuring socket timeout (10 s) 00&gt; [00:00:27.607,269] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 43 4f 4e 3a 20 31 0d |..#XHTTP CCON: 1. 00&gt; 0a |. 00&gt; [00:00:27.608,978] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:01:13.128,814] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:01:13.129,333] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 52 45 51 3d 22 47 45 |AT#XHTTP CREQ=&quot;GE 00&gt; 54 22 2c 22 2f 6f 6e 6c 69 6e 65 22 2c 22 22 |T&quot;,&quot;/onl ine&quot;,&quot;&quot; 00&gt; [00:01:13.132,080] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:01:13.133,239] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 45 51 3a 20 2d 31 |..#XHTTP CREQ: -1 00&gt; 32 38 0d 0a |28.. 00&gt; [00:01:13.136,260] &lt;err&gt; slm_httpc: do_http_request fail:-128 00&gt; [00:01:13.137,023] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 43 4f 4e 3a 20 30 0d |..#XHTTP CCON: 0. 00&gt; 0a |. 00&gt; [00:01:13.139,831] &lt;inf&gt; slm_httpc: HTTP thread terminated 00&gt; [00:01:16.653,503] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:01:16.654,022] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 43 4f 4e 3f |AT#XHTTP CCON? 00&gt; [00:01:16.655,609] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 43 4f 4e 3a 20 30 2c |..#XHTTP CCON: 0, 00&gt; 22 6e 65 76 65 72 73 73 6c 2e 63 6f 6d 22 2c 38 |&quot;neverss l.com&quot;,8 00&gt; 30 0d 0a |0.. 00&gt; [00:01:16.658,294] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:01:17.432,006] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:01:17.432,525] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 43 4f 4e 3d 31 2c 22 |AT#XHTTP CCON=1,&quot; 00&gt; 6e 65 76 65 72 73 73 6c 2e 63 6f 6d 22 2c 38 30 |neverssl .com&quot;,80 00&gt; [00:01:17.435,455] &lt;dbg&gt; slm_httpc.do_http_connect: Configuring socket timeout (10 s) 00&gt; [00:01:17.536,437] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 43 4f 4e 3a 20 31 0d |..#XHTTP CCON: 1. 00&gt; 0a |. 00&gt; [00:01:17.538,116] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:01:19.960,296] &lt;dbg&gt; slm_at_host.RX 00&gt; 41 [00:01:19.960,784] &lt;dbg&gt; slm_at_host.uart_callback: RX_DISABLED 00&gt; 54 23 58 48 54 54 50 43 52 45 51 3d 22 47 45 |AT#XHTTP CREQ=&quot;GE 00&gt; 54 22 2c 22 2f 6f 6e 6c 69 6e 65 22 2c 22 22 |T&quot;,&quot;/onl ine&quot;,&quot;&quot; 00&gt; [00:01:19.963,562] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 4f 4b 0d 0a |..OK.. 00&gt; [00:01:19.965,667] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 45 51 3a 20 30 0d |..#XHTTP CREQ: 0. 00&gt; 0a |. 00&gt; [00:01:26.943,115] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 53 50 3a 35 32 34 |..#XHTTP CRSP:524 00&gt; 2c 30 0d 0a |,0.. 00&gt; [00:01:26.946,075] &lt;dbg&gt; slm_at_host.TX 00&gt; 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d |HTTP/1.1 200 OK. 00&gt; 0a 43 6f 6e 74 65 6e 74 2d 54 79 70 65 3a 20 74 |.Content -Type: t 00&gt; 65 78 74 2f 68 74 6d 6c 0d 0a 43 6f 6e 74 65 6e |ext/html ..Conten 00&gt; 74 2d 4c 65 6e 67 74 68 3a 20 32 32 33 38 0d 0a |t-Length : 2238.. 00&gt; 43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 6b 65 65 70 |Connecti on: keep 00&gt; 2d 61 6c 69 76 65 0d 0a 4c 61 73 74 2d 4d 6f 64 |-alive.. Last-Mod 00&gt; 69 66 69 65 64 3a 20 54 68 75 2c 20 30 34 20 4e |ified: T hu, 04 N 00&gt; 6f 76 20 32 30 32 31 20 31 36 3a 33 34 3a 35 39 |ov 2021 16:34:59 00&gt; 20 47 4d 54 0d 0a 41 63 63 65 70 74 2d 52 61 6e | GMT..Ac cept-Ran 00&gt; 67 65 73 3a 20 62 79 74 65 73 0d 0a 53 65 72 76 |ges: byt es..Serv 00&gt; 65 72 3a 20 41 6d 61 7a 6f 6e 53 33 0d 0a 44 61 |er: Amaz onS3..Da 00&gt; 74 65 3a 20 54 75 65 2c 20 30 31 20 4d 61 72 20 |te: Tue, 01 Mar 00&gt; 32 30 32 32 20 30 35 3a 30 32 3a 35 31 20 47 4d |2022 05: 02:51 GM 00&gt; 54 0d 0a 45 54 61 67 3a 20 22 31 37 32 37 33 35 |T..ETag: &quot;172735 00&gt; 36 39 30 37 66 32 65 66 39 63 30 30 65 36 64 30 |6907f2ef 9c00e6d0 00&gt; 64 33 63 34 34 66 64 39 35 62 22 0d 0a 56 61 72 |d3c44fd9 5b&quot;..Var 00&gt; 79 3a 20 41 63 63 65 70 74 2d 45 6e 63 6f 64 69 |y: Accep t-Encodi 00&gt; 6e 67 0d 0a 43 61 63 68 65 2d 43 6f 6e 74 72 6f |ng..Cach e-Contro 00&gt; 6c 3a 20 70 75 62 6c 69 63 2c 20 6d 61 78 2d 61 |l: publi c, max-a 00&gt; 67 65 3d 38 36 34 30 30 0d 0a 58 2d 43 61 63 68 |ge=86400 ..X-Cach 00&gt; 65 3a 20 48 69 74 20 66 72 6f 6d 20 63 6c 6f 75 |e: Hit f rom clou 00&gt; 64 66 72 6f 6e 74 0d 0a 56 69 61 3a 20 31 2e 31 |dfront.. Via: 1.1 00&gt; 20 62 63 64 35 64 61 64 63 63 62 30 38 33 31 37 | bcd5dad ccb08317 00&gt; 32 39 39 36 39 63 39 33 38 37 34 37 66 66 37 39 |29969c93 8747ff79 00&gt; 61 2e 63 6c 6f 75 64 66 72 6f 6e 74 2e 6e 65 74 |a.cloudf ront.net 00&gt; 20 28 43 6c 6f 75 64 46 72 6f 6e 74 29 0d 0a 58 | (CloudF ront)..X 00&gt; 2d 41 6d 7a 2d 43 66 2d 50 6f 70 3a 20 4f 53 4c |-Amz-Cf- Pop: OSL 00&gt; 35 30 2d 43 31 0d 0a 58 2d 41 6d 7a 2d 43 66 2d |50-C1..X -Amz-Cf- 00&gt; 49 64 3a 20 4b 6a 4b 68 48 78 6c 37 7a 58 36 54 |Id: KjKh Hxl7zX6T 00&gt; 41 30 2d 54 41 71 39 58 4f 58 66 47 51 73 49 42 |A0-TAq9X OXfGQsIB 00&gt; 75 61 54 48 66 35 51 58 79 41 6e 64 44 38 4a 37 |uaTHf5QX yAndD8J7 00&gt; 33 31 6e 67 34 33 37 4c 56 51 3d 3d 0d 0a 41 67 |31ng437L VQ==..Ag 00&gt; 65 3a 20 33 37 37 34 34 0d 0a 0d 0a |e: 37744 .... 00&gt; [00:01:26.996,246] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 53 50 3a 35 30 30 |..#XHTTP CRSP:500 00&gt; 2c 30 0d 0a |,0.. 00&gt; [00:01:27.042,510] &lt;dbg&gt; slm_at_host.TX 00&gt; 3c 68 74 6d 6c 3e 0a 09 3c 68 65 61 64 3e 0a 09 |&lt;html&gt;.. &lt;head&gt;.. 00&gt; 09 3c 74 69 74 6c 65 3e 4e 65 76 65 72 53 53 4c |.&lt;title&gt; NeverSSL 00&gt; 20 2d 20 68 65 6c 70 69 6e 67 20 79 6f 75 20 67 | - helpi ng you g 00&gt; 65 74 20 6f 6e 6c 69 6e 65 3c 2f 74 69 74 6c 65 |et onlin e&lt;/title 00&gt; 3e 0a 0a 09 09 3c 73 74 79 6c 65 3e 0a 09 09 62 |&gt;....&lt;st yle&gt;...b 00&gt; 6f 64 79 20 7b 0a 09 09 09 66 6f 6e 74 2d 66 61 |ody {... .font-fa 00&gt; 6d 69 6c 79 3a 20 4d 6f 6e 74 73 65 72 72 61 74 |mily: Mo ntserrat 00&gt; 2c 20 68 65 6c 76 65 74 69 63 61 2c 20 61 72 69 |, helvet ica, ari 00&gt; 61 6c 2c 20 73 61 6e 73 2d 73 65 72 69 66 3b 20 |al, sans -serif; 00&gt; 0a 09 09 09 66 6f 6e 74 2d 73 69 7a 65 3a 20 31 |....font -size: 1 00&gt; 36 78 3b 0a 09 09 09 63 6f 6c 6f 72 3a 20 23 34 |6x;....c olor: #4 00&gt; 34 34 34 34 34 3b 0a 09 09 09 6d 61 72 67 69 6e |44444;.. ..margin 00&gt; 3a 20 30 3b 0a 09 09 7d 0a 09 09 68 32 20 7b 0a |: 0;...} ...h2 {. 00&gt; 09 09 09 66 6f 6e 74 2d 77 65 69 67 68 74 3a 20 |...font- weight: 00&gt; 37 30 30 3b 0a 09 09 09 66 6f 6e 74 2d 73 69 7a |700;.... font-siz 00&gt; 65 3a 20 31 2e 36 65 6d 3b 0a 09 09 09 6d 61 72 |e: 1.6em ;....mar 00&gt; 67 69 6e 2d 74 6f 70 3a 20 33 30 70 78 3b 0a 09 |gin-top: 30px;.. 00&gt; 09 7d 0a 09 09 70 20 7b 0a 09 09 09 6c 69 6e 65 |.}...p { ....line 00&gt; 2d 68 65 69 67 68 74 3a 20 31 2e 36 65 6d 3b 0a |-height: 1.6em;. 00&gt; 09 09 7d 0a 09 09 2e 63 6f 6e 74 61 69 6e 65 72 |..}....c ontainer 00&gt; 20 7b 0a 09 09 09 6d 61 78 2d 77 69 64 74 68 3a | {....ma x-width: 00&gt; 20 36 35 30 70 78 3b 0a 09 09 09 6d 61 72 67 69 | 650px;. ...margi 00&gt; 6e 3a 20 32 30 70 78 20 61 75 74 6f 20 32 30 70 |n: 20px auto 20p 00&gt; 78 20 61 75 74 6f 3b 0a 09 09 09 70 61 64 64 69 |x auto;. ...paddi 00&gt; 6e 67 2d 6c 65 66 74 3a 20 31 35 70 78 3b 0a 09 |ng-left: 15px;.. 00&gt; 09 09 70 61 64 64 69 6e 67 2d 72 69 67 68 74 3a |..paddin g-right: 00&gt; 20 31 35 70 78 0a 09 09 7d 0a 09 09 2e 68 65 61 | 15px... }....hea 00&gt; 64 65 72 20 7b 0a 09 09 09 62 61 63 6b 67 72 6f |der {... .backgro 00&gt; 75 6e 64 2d 63 6f 6c 6f 72 3a 20 23 34 32 43 30 |und-colo r: #42C0 00&gt; 46 44 3b 0a 09 09 09 63 6f 6c 6f 72 3a 20 23 46 |FD;....c olor: #F 00&gt; 46 46 46 46 46 3b 0a 09 09 09 70 61 64 64 69 6e |FFFFF;.. ..paddin 00&gt; 67 3a 20 31 |g: 1 00&gt; [00:01:27.090,728] &lt;dbg&gt; slm_httpc.response_cb: Response data received (1024 bytes) 00&gt; [00:01:27.124,725] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 53 50 3a 31 30 32 |..#XHTTP CRSP:102 00&gt; 34 2c 30 0d 0a |4,0.. 00&gt; [00:01:27.134,918] &lt;dbg&gt; slm_at_host.TX 00&gt; 30 70 78 20 30 20 31 30 70 78 20 30 3b 0a 09 09 |0px 0 10 px 0;... 00&gt; 09 66 6f 6e 74 2d 73 69 7a 65 3a 20 32 2e 32 65 |.font-si ze: 2.2e 00&gt; 6d 3b 0a 09 09 7d 0a 09 09 3c 21 2d 2d 20 43 53 |m;...}.. .&lt;!-- CS 00&gt; 53 20 66 72 6f 6d 20 4d 61 72 6b 20 57 65 62 73 |S from M ark Webs 00&gt; 74 65 72 20 68 74 74 70 73 3a 2f 2f 67 69 73 74 |ter http s://gist 00&gt; 2e 67 69 74 68 75 62 2e 63 6f 6d 2f 6d 61 72 6b |.github. com/mark 00&gt; 63 77 65 62 73 74 65 72 2f 39 62 64 66 33 30 36 |cwebster /9bdf306 00&gt; 35 35 63 64 64 35 32 37 39 62 61 64 31 33 39 39 |55cdd527 9bad1399 00&gt; 33 61 63 38 37 63 38 35 64 20 2d 2d 3e 0a 09 09 |3ac87c85 d --&gt;... 00&gt; 3c 2f 73 74 79 6c 65 3e 0a 09 3c 2f 68 65 61 64 |&lt;/style&gt; ..&lt;/head 00&gt; 3e 0a 09 3c 62 6f 64 79 3e 0a 0a 09 3c 64 69 76 |&gt;..&lt;body &gt;...&lt;div 00&gt; 20 63 6c 61 73 73 3d 22 68 65 61 64 65 72 22 3e | class=&quot; header&quot;&gt; 00&gt; 0a 09 09 3c 64 69 76 20 63 6c 61 73 73 3d 22 63 |...&lt;div class=&quot;c 00&gt; 6f 6e 74 61 69 6e 65 72 22 3e 0a 09 09 3c 68 31 |ontainer &quot;&gt;...&lt;h1 00&gt; 3e 4e 65 76 65 72 53 53 4c 3c 2f 68 31 3e 0a 09 |&gt;NeverSS L&lt;/h1&gt;.. 00&gt; 09 3c 2f 64 69 76 3e 0a 09 3c 2f 64 69 76 3e 0a |.&lt;/div&gt;. .&lt;/div&gt;. 00&gt; 09 0a 09 3c 64 69 76 20 63 6c 61 73 73 3d 22 63 |...&lt;div class=&quot;c 00&gt; 6f 6e 74 65 6e 74 22 3e 0a 09 3c 64 69 76 20 63 |ontent&quot;&gt; ..&lt;div c 00&gt; 6c 61 73 73 3d 22 63 6f 6e 74 61 69 6e 65 72 22 |lass=&quot;co ntainer&quot; 00&gt; 3e 0a 0a 09 3c 68 32 3e 57 68 61 74 3f 3c 2f 68 |&gt;...&lt;h2&gt; What?&lt;/h 00&gt; 32 3e 0a 09 3c 70 3e 54 68 69 73 20 77 65 62 73 |2&gt;..&lt;p&gt;T his webs 00&gt; 69 74 65 20 69 73 20 66 6f 72 20 77 68 65 6e 20 |ite is f or when 00&gt; 79 6f 75 20 74 72 79 20 74 6f 20 6f 70 65 6e 20 |you try to open 00&gt; 46 61 63 65 62 6f 6f 6b 2c 20 47 6f 6f 67 6c 65 |Facebook , Google 00&gt; 2c 20 41 6d 61 7a 6f 6e 2c 20 65 74 63 0a 09 6f |, Amazon , etc..o 00&gt; 6e 20 61 20 77 69 66 69 20 6e 65 74 77 6f 72 6b |n a wifi network 00&gt; 2c 20 61 6e 64 20 6e 6f 74 68 69 6e 67 20 68 61 |, and no thing ha 00&gt; 70 70 65 6e 73 2e 20 54 79 70 65 20 22 68 74 74 |ppens. T ype &quot;htt 00&gt; 70 3a 2f 2f 6e 65 76 65 72 73 73 6c 2e 63 6f 6d |p://neve rssl.com 00&gt; 22 0a 09 69 6e 74 6f 20 79 6f 75 72 20 62 72 6f |&quot;..into your bro 00&gt; 77 73 65 72 27 73 20 75 72 6c 20 62 61 72 2c 20 |wser&#39;s u rl bar, 00&gt; 61 6e 64 20 79 6f 75 27 6c 6c 20 62 65 20 61 62 |and you&#39; ll be ab 00&gt; 6c 65 20 74 6f 20 6c 6f 67 20 6f 6e 2e 3c 2f 70 |le to lo g on.&lt;/p 00&gt; 3e 0a 0a 09 3c 68 32 3e 48 6f 77 3f 3c 2f 68 32 |&gt;...&lt;h2&gt; How?&lt;/h2 00&gt; 3e 0a 09 3c 70 3e 6e 65 76 65 72 73 73 6c 2e 63 |&gt;..&lt;p&gt;ne verssl.c 00&gt; 6f 6d 20 77 69 6c 6c 20 6e 65 76 65 72 20 75 73 |om will never us 00&gt; 65 20 53 53 4c 20 28 61 6c 73 6f 20 6b 6e 6f 77 |e SSL (a lso know 00&gt; 6e 20 61 73 20 54 4c 53 29 2e 20 4e 6f 0a 09 65 |n as TLS ). No..e 00&gt; 6e 63 72 79 70 74 69 6f 6e 2c 20 6e 6f 20 73 74 |ncryptio n, no st 00&gt; 72 6f 6e 67 20 61 75 74 68 65 6e 74 69 63 61 74 |rong aut henticat 00&gt; 69 6f 6e 2c 20 6e 6f 20 3c 61 0a 09 68 72 65 66 |ion, no &lt;a..href 00&gt; 3d 22 68 74 74 70 73 3a 2f 2f 65 6e 2e 77 69 6b |=&quot;https: //en.wik 00&gt; 69 70 65 64 69 61 2e 6f 72 67 2f 77 69 6b 69 2f |ipedia.o rg/wiki/ 00&gt; 48 54 54 50 5f 53 74 72 69 63 74 5f 54 72 61 6e |HTTP_Str ict_Tran 00&gt; 73 70 6f 72 74 5f 53 65 63 75 72 69 74 79 22 3e |sport_Se curity&quot;&gt; 00&gt; 48 53 54 53 3c 2f 61 3e 2c 0a 09 6e 6f 20 48 54 |HSTS&lt;/a&gt; ,..no HT 00&gt; 54 50 2f 32 2e 30 2c 20 6a 75 73 74 20 70 6c 61 |TP/2.0, just pla 00&gt; 69 6e 20 6f 6c 64 20 75 6e 65 6e 63 72 79 70 74 |in old u nencrypt 00&gt; 65 64 20 48 54 54 50 20 61 6e 64 20 66 6f 72 65 |ed HTTP and fore 00&gt; 76 65 72 20 73 74 75 63 6b 20 69 6e 20 74 68 65 |ver stuc k in the 00&gt; 20 64 61 72 6b 0a 09 61 67 65 73 20 6f 66 20 69 | dark..a ges of i 00&gt; 6e 74 65 72 6e 65 74 20 73 65 63 75 72 69 74 79 |nternet security 00&gt; 2e 3c 2f 70 3e 20 0a 0a 09 3c 68 32 3e 57 68 79 |.&lt;/p&gt; .. .&lt;h2&gt;Why 00&gt; 3f 3c 2f 68 32 3e 0a 09 3c 70 3e 4e 6f 72 6d 61 |?&lt;/h2&gt;.. &lt;p&gt;Norma 00&gt; 6c 6c 79 2c 20 74 68 61 74 27 73 20 61 20 62 61 |lly, tha t&#39;s a ba 00&gt; 64 20 69 64 65 61 2e 20 59 6f 75 20 73 68 6f 75 |d idea. You shou 00&gt; 6c 64 20 61 6c 77 61 79 73 20 75 73 65 20 53 53 |ld alway s use SS 00&gt; 4c 20 61 6e 64 20 73 65 63 75 72 65 0a 09 65 6e |L and se cure..en 00&gt; 63 72 79 70 74 69 6f 6e 20 77 68 65 6e 20 70 6f |cryption when po 00&gt; 73 73 69 62 6c 65 2e 20 49 6e 20 66 61 63 74 2c |ssible. In fact, 00&gt; 20 69 74 27 73 20 73 75 63 68 20 61 20 62 61 64 | it&#39;s su ch a bad 00&gt; 20 69 64 65 61 20 74 68 61 74 20 6d 6f 73 74 20 | idea th at most 00&gt; 77 65 62 73 69 74 65 73 0a 09 61 72 65 20 6e 6f |websites ..are no 00&gt; 77 20 75 73 69 6e 67 20 68 74 74 70 73 20 62 79 |w using https by 00&gt; [00:01:27.232,055] &lt;dbg&gt; slm_httpc.response_cb: Response data received (1024 bytes) 00&gt; [00:01:27.233,184] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 53 50 3a 37 31 34 |..#XHTTP CRSP:714 00&gt; 2c 31 0d 0a |,1.. 00&gt; [00:01:27.322,540] &lt;dbg&gt; slm_at_host.TX 00&gt; 20 64 65 66 61 75 6c 74 2e 3c 2f 70 3e 0a 09 0a | default .&lt;/p&gt;... 00&gt; 09 3c 70 3e 41 6e 64 20 74 68 61 74 27 73 20 67 |.&lt;p&gt;And that&#39;s g 00&gt; 72 65 61 74 2c 20 62 75 74 20 69 74 20 61 6c 73 |reat, bu t it als 00&gt; 6f 20 6d 65 61 6e 73 20 74 68 61 74 20 69 66 20 |o means that if 00&gt; 79 6f 75 27 72 65 20 72 65 6c 79 69 6e 67 20 6f |you&#39;re r elying o 00&gt; 6e 0a 09 70 6f 6f 72 6c 79 2d 62 65 68 61 76 65 |n..poorl y-behave 00&gt; 64 20 77 69 66 69 20 6e 65 74 77 6f 72 6b 73 2c |d wifi n etworks, 00&gt; 20 69 74 20 63 61 6e 20 62 65 20 68 61 72 64 20 | it can be hard 00&gt; 74 6f 20 67 65 74 20 6f 6e 6c 69 6e 65 2e 20 20 |to get o nline. 00&gt; 53 65 63 75 72 65 0a 09 62 72 6f 77 73 65 72 73 |Secure.. browsers 00&gt; 20 61 6e 64 20 77 65 62 73 69 74 65 73 20 75 73 | and web sites us 00&gt; 69 6e 67 20 68 74 74 70 73 20 6d 61 6b 65 20 69 |ing http s make i 00&gt; 74 20 69 6d 70 6f 73 73 69 62 6c 65 20 66 6f 72 |t imposs ible for 00&gt; 20 74 68 6f 73 65 20 77 69 66 69 0a 09 6e 65 74 | those w ifi..net 00&gt; 77 6f 72 6b 73 20 74 6f 20 73 65 6e 64 20 79 6f |works to send yo 00&gt; 75 20 74 6f 20 61 20 6c 6f 67 69 6e 20 6f 72 20 |u to a l ogin or 00&gt; 70 61 79 6d 65 6e 74 20 70 61 67 65 2e 20 42 61 |payment page. Ba 00&gt; 73 69 63 61 6c 6c 79 2c 20 74 68 6f 73 65 20 6e |sically, those n 00&gt; 65 74 77 6f 72 6b 73 0a 09 63 61 6e 27 74 20 74 |etworks. .can&#39;t t 00&gt; 61 70 20 69 6e 74 6f 20 79 6f 75 72 20 63 6f 6e |ap into your con 00&gt; 6e 65 63 74 69 6f 6e 20 6a 75 73 74 20 6c 69 6b |nection just lik 00&gt; 65 20 61 74 74 61 63 6b 65 72 73 20 63 61 6e 27 |e attack ers can&#39; 00&gt; 74 2e 20 4d 6f 64 65 72 6e 20 62 72 6f 77 73 65 |t. Moder n browse 00&gt; 72 73 0a 09 61 72 65 20 73 6f 20 67 6f 6f 64 20 |rs..are so good 00&gt; 74 68 61 74 20 74 68 65 79 20 63 61 6e 20 72 65 |that the y can re 00&gt; 6d 65 6d 62 65 72 20 77 68 65 6e 20 61 20 77 65 |member w hen a we 00&gt; 62 73 69 74 65 20 73 75 70 70 6f 72 74 73 20 65 |bsite su pports e 00&gt; 6e 63 72 79 70 74 69 6f 6e 20 61 6e 64 0a 09 65 |ncryptio n and..e 00&gt; 76 65 6e 20 69 66 20 79 6f 75 20 74 79 70 65 20 |ven if y ou type 00&gt; 69 6e 20 74 68 65 20 77 65 62 73 69 74 65 20 6e |in the w ebsite n 00&gt; 61 6d 65 2c 20 74 68 65 79 27 6c 6c 20 75 73 65 |ame, the y&#39;ll use 00&gt; 20 68 74 74 70 73 2e 3c 2f 70 3e 20 0a 0a 09 3c | https.&lt; /p&gt; ...&lt; 00&gt; 70 3e 41 6e 64 20 69 66 20 74 68 65 20 6e 65 74 |p&gt;And if the net 00&gt; 77 6f 72 6b 20 6e 65 76 65 72 20 72 65 64 69 72 |work nev er redir 00&gt; 65 63 74 73 20 79 6f 75 20 74 6f 20 74 68 69 73 |ects you to this 00&gt; 20 70 61 67 65 2c 20 77 65 6c 6c 20 61 73 20 79 | page, w ell as y 00&gt; 6f 75 20 63 61 6e 0a 09 73 65 65 2c 20 79 6f 75 |ou can.. see, you 00&gt; 27 72 65 20 6e 6f 74 20 6d 69 73 73 69 6e 67 20 |&#39;re not missing 00&gt; 6d 75 63 68 2e 3c 2f 70 3e 0a 0a 09 3c 61 20 68 |much.&lt;/p &gt;...&lt;a h 00&gt; 72 65 66 3d 22 68 74 74 70 73 3a 2f 2f 74 77 69 |ref=&quot;htt ps://twi 00&gt; 74 74 65 72 2e 63 6f 6d 2f 6e 65 76 65 72 73 73 |tter.com /neverss 00&gt; 6c 22 3e 46 6f 6c 6c 6f 77 20 40 6e 65 76 65 72 |l&quot;&gt;Follo w @never 00&gt; 73 73 6c 3c 2f 61 3e 0a 0a 09 3c 2f 64 69 76 3e |ssl&lt;/a&gt;. ..&lt;/div&gt; 00&gt; 0a 09 3c 2f 64 69 76 3e 0a 09 3c 2f 62 6f 64 79 |..&lt;/div&gt; ..&lt;/body 00&gt; 3e 0a 3c 2f 68 74 6d 6c 3e 0a |&gt;.&lt;/html &gt;. 00&gt; [00:01:27.390,716] &lt;dbg&gt; slm_at_host.TX 00&gt; 0d 0a 23 58 48 54 54 50 43 52 53 50 3a 30 2c 31 |..#XHTTP CRSP:0,1 00&gt; 0d 0a |.. 00&gt; [00:01:27.453,765] &lt;dbg&gt; slm_httpc.response_cb: Response data received (714 bytes) 00&gt; [00:01:27.454,498] &lt;inf&gt; slm_httpc: HTTP thread terminated</pre></p> <p>Best regards,</p> <p>Charlie</p> </div> </div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355101?ContentTypeID=1Fri, 25 Feb 2022 17:44:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d694d97-5782-4060-af19-42067594721dccasebeer<p>Do you think I&quot;ll get to see every byte that comes back in a 130k HTTP request, all in one payload?</p> <p>I see lots of dropped messages when investigating the LTE Modem software using RTT viewer.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355008?ContentTypeID=1Fri, 25 Feb 2022 11:56:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2860ae77-86c8-444b-921b-89569a497f60Charlie<p>Hi Christopher,</p> <p>I just wonder if it is possible to do a similar test only on the nRF9160 side. For example, you can test with nRF9160DK with a serial terminal on a PC.</p> <p>If a similar issue happens, we would like to see the log file from your experiments.</p> <p>Best regards,</p> <p>Charlie</p><div style="clear:both;"></div>