serial_lte_modem Error on AT#XTCPCONN #XSOCKET: -60 tcpip: connect() failed: -60

[Francis S]

Hi 

I am testing tcp commands on the serial_lte_modem sample code. AT#XTCPCONN returns connect() failed: -60. 

Log file attached 

2020-02-29T16:51:56.736Z DEBUG modem >> AT+CGMM\x0D\x0A
2020-02-29T16:51:56.774Z DEBUG modem << nRF9160-SICA\x0D\x0A
2020-02-29T16:51:56.775Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.777Z DEBUG modem >> AT+CGMR\x0D\x0A
2020-02-29T16:51:56.800Z DEBUG modem << mfw_nrf9160_1.1.1\x0D\x0A
2020-02-29T16:51:56.801Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.802Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.1.1] SerNr: 352656100221228
2020-02-29T16:51:56.803Z DEBUG modem >> AT+CEMODE?\x0D\x0A
2020-02-29T16:51:56.839Z DEBUG modem << +CEMODE: 0\x0D\x0A
2020-02-29T16:51:56.855Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.876Z DEBUG modem >> AT%XCBAND=?\x0D\x0A
2020-02-29T16:51:56.902Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,17,19,20,25,26,28,66)\x0D\x0A
2020-02-29T16:51:56.904Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.911Z DEBUG modem >> AT+CMEE?\x0D\x0A
2020-02-29T16:51:56.939Z DEBUG modem << +CMEE: 1\x0D\x0A
2020-02-29T16:51:56.940Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.942Z DEBUG modem >> AT+CNEC?\x0D\x0A
2020-02-29T16:51:56.968Z DEBUG modem << +CNEC: 24\x0D\x0A
2020-02-29T16:51:56.970Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:56.991Z DEBUG modem >> AT+CGEREP?\x0D\x0A
2020-02-29T16:51:57.020Z DEBUG modem << +CGEREP: 1,0\x0D\x0A
2020-02-29T16:51:57.022Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.024Z DEBUG modem >> AT+CIND=1,1,1\x0D\x0A
2020-02-29T16:51:57.058Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.060Z DEBUG modem >> AT+CEREG=2\x0D\x0A
2020-02-29T16:51:57.090Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.092Z DEBUG modem >> AT+CEREG?\x0D\x0A
2020-02-29T16:51:57.123Z DEBUG modem << +CEREG: 2,1,"9C40","01B1FD17",9\x0D\x0A
2020-02-29T16:51:57.125Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.129Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2020-02-29T16:51:57.153Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.155Z DEBUG modem >> AT+COPS?\x0D\x0A
2020-02-29T16:51:57.193Z DEBUG modem << +COPS: 0,2,"65501",9\x0D\x0A
2020-02-29T16:51:57.194Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.198Z DEBUG modem >> AT%XCBAND\x0D\x0A
2020-02-29T16:51:57.217Z DEBUG modem << %XCBAND: 8\x0D\x0A
2020-02-29T16:51:57.218Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.240Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2020-02-29T16:51:57.262Z DEBUG modem << +CGDCONT: 0,"IP","ltedefault.vodacom.za","10.170.154.87",0,0\x0D\x0A
2020-02-29T16:51:57.263Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.286Z DEBUG modem >> AT+CGACT?\x0D\x0A
2020-02-29T16:51:57.308Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2020-02-29T16:51:57.309Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.312Z DEBUG modem >> AT%CESQ=1\x0D\x0A
2020-02-29T16:51:57.338Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.341Z DEBUG modem >> AT+CESQ\x0D\x0A
2020-02-29T16:51:57.377Z DEBUG modem << +CESQ: 99,99,255,255,17,35\x0D\x0A
2020-02-29T16:51:57.378Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.382Z DEBUG modem >> AT%XSIM=1\x0D\x0A
2020-02-29T16:51:57.403Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.410Z DEBUG modem >> AT%XSIM?\x0D\x0A
2020-02-29T16:51:57.438Z DEBUG modem << %XSIM: 1\x0D\x0A
2020-02-29T16:51:57.439Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.442Z DEBUG modem >> AT+CPIN?\x0D\x0A
2020-02-29T16:51:57.471Z DEBUG modem << +CPIN: READY\x0D\x0A
2020-02-29T16:51:57.472Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.476Z DEBUG modem >> AT+CPINR="SIM PIN"\x0D\x0A
2020-02-29T16:51:57.508Z DEBUG modem << +CPINR: "SIM PIN",3\x0D\x0A
2020-02-29T16:51:57.509Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.513Z DEBUG modem >> AT+CIMI\x0D\x0A
2020-02-29T16:51:57.537Z DEBUG modem << 655017701568614\x0D\x0A
2020-02-29T16:51:57.538Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:51:57.539Z INFO IMSIdentity: 655017701568614
2020-02-29T16:52:06.928Z DEBUG modem >> AT#XSOCKET=1,1\x0D\x0A
2020-02-29T16:52:06.954Z DEBUG modem << #XSOCKET: 2, 6\x0D\x0A
2020-02-29T16:52:06.955Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:52:15.209Z DEBUG modem >> AT#XBIND=1234\x0D\x0A
2020-02-29T16:52:15.241Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:52:29.297Z DEBUG modem << %CESQ: 35,1,10,1\x0D
2020-02-29T16:52:31.856Z DEBUG modem << %CESQ: 35,1,17,2\x0D
2020-02-29T16:52:49.776Z DEBUG modem << %CESQ: 27,1,7,1\x0D
2020-02-29T16:52:52.336Z DEBUG modem << %CESQ: 32,1,16,2\x0D\x0A
2020-02-29T16:53:00.021Z DEBUG modem << %CESQ: 32,1,11,1\x0D\x0A\x00
2020-02-29T16:53:00.134Z DEBUG modem >> AT#XTCPCONN="185.3.95.41",80\x0D\x0A
2020-02-29T16:53:01.135Z ERROR Error: 'AT#XTCPCONN="185.3.95.41",80^M
' timed out
2020-02-29T16:53:03.547Z DEBUG modem << #XSOCKET: -60\x0D
2020-02-29T16:53:03.548Z DEBUG modem << ERROR\x0D\x0A
2020-02-29T16:53:04.540Z DEBUG modem << [00:38:53.375,946] \x1B[1;31m<err> tcpip: connect() failed: -60\x1B[0m\x0D
2020-02-29T16:53:29.509Z DEBUG modem << +CEREG: 1,"9C40","034ABD21",9\x0D\x0A\x00
2020-02-29T16:53:29.533Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2020-02-29T16:53:29.540Z DEBUG modem << OK\x0D
2020-02-29T16:53:29.543Z DEBUG modem >> AT+COPS?\x0D\x0A
2020-02-29T16:53:29.574Z DEBUG modem << +COPS: 0,2,"65501",9\x0D\x0A
2020-02-29T16:53:29.576Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:53:29.580Z DEBUG modem >> AT%XCBAND\x0D\x0A
2020-02-29T16:53:29.611Z DEBUG modem << %XCBAND: 8\x0D\x0A
2020-02-29T16:53:29.612Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:53:29.616Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2020-02-29T16:53:29.641Z DEBUG modem << +CGDCONT: 0,"IP","ltedefault.vodacom.za","10.170.154.87",0,0\x0D\x0A
2020-02-29T16:53:29.642Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:53:29.646Z DEBUG modem >> AT+CGACT?\x0D\x0A
2020-02-29T16:53:29.679Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2020-02-29T16:53:29.681Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:53:35.856Z DEBUG modem << %CESQ: 32,1,16,2\x0D\x0A\x00
2020-02-29T16:53:40.351Z DEBUG modem >> AT#XSOCKET=1,1\x0D\x0A
2020-02-29T16:53:40.377Z DEBUG modem << #XSOCKET: 2, 6\x0D\x0A
2020-02-29T16:53:40.378Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:53:40.976Z DEBUG modem << %CESQ: 32,1,11,1\x0D\x0A\x00
2020-02-29T16:53:48.656Z DEBUG modem << %CESQ: 32,1,18,2\x0D\x0A\x00
2020-02-29T16:53:50.599Z DEBUG modem >> AT#XTCPCONN="185.3.95.41",80\x0D\x0A
2020-02-29T16:53:51.388Z DEBUG modem << #XSOCKET: -60\x0D\x0A
2020-02-29T16:53:51.390Z DEBUG modem << ERROR\x0D\x0A
2020-02-29T16:53:51.392Z ERROR Error: AT#XTCPCONN="185.3.95.41",80^M
 failed
2020-02-29T16:53:52.382Z DEBUG modem << [00:39:41.219,177] \x1B[1;31m<err> tcpip: connect() failed: -60\x1B[0m\x0D\x0A
2020-02-29T16:54:12.382Z DEBUG modem << %CESQ: 255,0,255,0\x0D\x0A
2020-02-29T16:54:12.408Z DEBUG modem << +CEREG: 1,"FFFE","FFFFFFFF",9\x0D\x0A\x00
2020-02-29T16:54:12.414Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2020-02-29T16:54:12.419Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:54:12.421Z DEBUG modem >> AT+COPS?\x0D\x0A
2020-02-29T16:54:12.449Z DEBUG modem << +COPS: 0\x0D\x0A
2020-02-29T16:54:12.450Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:54:12.457Z DEBUG modem >> AT%XCBAND\x0D\x0A
2020-02-29T16:54:12.485Z DEBUG modem << %XCBAND: 0\x0D\x0A
2020-02-29T16:54:12.487Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:54:12.513Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2020-02-29T16:54:12.538Z DEBUG modem << +CGDCONT: 0,"IP","ltedefault.vodacom.za","10.170.154.87",0,0\x0D\x0A
2020-02-29T16:54:12.541Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:54:12.567Z DEBUG modem >> AT+CGACT?\x0D\x0A
2020-02-29T16:54:12.589Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2020-02-29T16:54:12.590Z DEBUG modem << OK\x0D\x0A
2020-02-29T16:54:16.870Z INFO Modem port is closed

[Jun Qing ZOU]

#define ETIMEDOUT 60    /* Connection timed out */

Please use the AT#XPING (available in NCS master) to test whether "185.3.95.41" is reachable from your UE or not.

Also you need to make sure that Port 80 accept the connection, which could be verified with tools like "netcat'