Recurrent "failed to set dtr/rts" issue on EHS6T | Telit Cinterion IoT Developer Community
August 23, 2022 - 8:24am, 2063 views
Hello,
I have issues with EHS6T Modems. I use them for USSD via AT Command from LAN only. They Works fine for 1 day and then an "failed to set dtr/rts" error occurred and I'm no more able to connect to Modem NOR run AT Commands until a hard reboot. OS reboot doesn't fix issue either. I disabled power saving Mode and disable PPP service.
Attached is the system Log with full errors.
Please need a help to fix issue as I'm using them for Enterprise Service in production.
Regards.
Wed Aug 10 17:15:40 2022 kern.err kernel: [202285.970000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:15:45 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:15:45 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:16:21 2022 kern.err kernel: [202326.680000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:16:26 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:17:06 2022 kern.err kernel: [202372.430000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:17:11 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:17:47 2022 kern.err kernel: [202413.130000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:17:52 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:17:52 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:18:33 2022 kern.err kernel: [202458.850000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:18:38 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:18:38 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:19:13 2022 kern.err kernel: [202499.520000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:19:18 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:19:59 2022 kern.err kernel: [202545.240000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:20:04 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:20:40 2022 kern.err kernel: [202585.910000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:20:45 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:21:25 2022 kern.err kernel: [202631.620000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:21:30 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:22:06 2022 kern.err kernel: [202672.290000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:22:11 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:22:11 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:22:52 2022 kern.err kernel: [202718.060000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:22:57 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:23:33 2022 kern.err kernel: [202758.730000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:23:38 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:24:18 2022 kern.err kernel: [202804.450000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:24:23 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:24:59 2022 kern.err kernel: [202845.110000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:25:04 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:25:45 2022 kern.err kernel: [202890.840000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:25:50 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:26:25 2022 kern.err kernel: [202931.490000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:26:30 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:27:11 2022 kern.err kernel: [202977.210000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:27:16 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:27:52 2022 kern.err kernel: [203017.910000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:27:57 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:28:37 2022 kern.err kernel: [203063.620000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:28:42 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:28:43 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:29:18 2022 kern.err kernel: [203104.300000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:29:23 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:29:23 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:30:04 2022 kern.err kernel: [203150.000000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:30:09 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:30:45 2022 kern.err kernel: [203190.660000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:30:50 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:31:30 2022 kern.err kernel: [203236.370000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:31:35 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:32:11 2022 kern.err kernel: [203277.040000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:32:16 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:32:57 2022 kern.err kernel: [203322.750000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:33:02 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:33:02 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:33:37 2022 kern.err kernel: [203363.430000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:33:42 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:34:23 2022 kern.err kernel: [203409.160000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:34:28 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:34:28 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:35:04 2022 kern.err kernel: [203449.850000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:35:09 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:35:49 2022 kern.err kernel: [203495.550000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:35:54 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:36:30 2022 kern.err kernel: [203536.240000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:36:35 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:37:16 2022 kern.err kernel: [203581.980000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:37:21 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:37:57 2022 kern.err kernel: [203622.670000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:38:02 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:38:42 2022 kern.err kernel: [203668.370000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:38:47 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:39:23 2022 kern.err kernel: [203709.050000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:39:28 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:40:09 2022 kern.err kernel: [203754.780000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:40:14 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:40:14 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:40:49 2022 kern.err kernel: [203795.430000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:40:54 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:40:54 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:41:35 2022 kern.err kernel: [203841.110000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:41:40 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:42:16 2022 kern.err kernel: [203881.790000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:42:21 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:43:01 2022 kern.err kernel: [203927.530000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:43:06 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:43:42 2022 kern.err kernel: [203968.220000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:43:47 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:44:28 2022 kern.err kernel: [204013.900000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:44:33 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:44:33 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:45:08 2022 kern.err kernel: [204054.570000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:45:13 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:45:54 2022 kern.err kernel: [204100.300000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:45:59 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:45:59 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:46:35 2022 kern.err kernel: [204140.980000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:46:40 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:47:21 2022 kern.err kernel: [204186.680000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:47:26 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:48:01 2022 kern.err kernel: [204227.350000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:48:06 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:48:06 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:48:47 2022 kern.err kernel: [204273.090000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:48:52 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:49:28 2022 kern.err kernel: [204313.730000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:49:33 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:49:33 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:50:13 2022 kern.err kernel: [204359.440000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:50:18 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:50:54 2022 kern.err kernel: [204400.130000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:50:59 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:50:59 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:51:40 2022 kern.err kernel: [204445.850000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:51:45 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:51:45 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:52:20 2022 kern.err kernel: [204486.530000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:52:25 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:53:06 2022 kern.err kernel: [204532.230000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:53:11 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:53:11 2022 ******.err ser2net[1048]: read error for port 1234: Connection reset by peer
Wed Aug 10 17:53:47 2022 kern.err kernel: [204572.860000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:53:52 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:54:32 2022 kern.err kernel: [204618.560000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:54:37 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:55:13 2022 kern.err kernel: [204659.200000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:55:18 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:55:59 2022 kern.err kernel: [204704.910000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:56:04 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:56:39 2022 kern.err kernel: [204745.570000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:56:44 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:57:25 2022 kern.err kernel: [204791.270000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:57:30 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:58:06 2022 kern.err kernel: [204831.970000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:58:11 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:58:52 2022 kern.err kernel: [204877.680000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:58:57 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 17:59:32 2022 kern.err kernel: [204918.350000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 17:59:37 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:00:18 2022 kern.err kernel: [204964.080000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:00:23 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:00:59 2022 kern.err kernel: [205004.760000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:01:04 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:01:44 2022 kern.err kernel: [205050.460000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:01:49 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:02:25 2022 kern.err kernel: [205091.140000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:02:30 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:03:11 2022 kern.err kernel: [205136.850000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:03:16 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:03:51 2022 kern.err kernel: [205177.520000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:03:56 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:04:37 2022 kern.err kernel: [205223.210000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:04:42 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:05:18 2022 kern.err kernel: [205263.900000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:05:23 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:06:04 2022 kern.err kernel: [205309.650000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:06:08 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Wed Aug 10 18:06:44 2022 kern.err kernel: [205350.330000] cdc_acm 1-1:1.6: failed to set dtr/rts
Wed Aug 10 18:06:49 2022 ******.err ser2net[1048]: Could not turn off break for device /dev/ttyACM3 port 1234: Connection timed out
Hello,
It looks like there is some problem with accessing the modules ttyACM3 port via telnet. I'd check if the module is accessible via the physical RS232 port available on the casing. AT^SPOW output ***** to be checked first to verify if the port is not disabled. And you can also check the communication over some other USB virtual port from within the OpenWrt system. Please note that not all USB ports reply to AT commands. The details can be found in AT commands specification for the module. The purpose is to check if the module is alive. If it is the problem is most probably related to OpenWrt. Please try to find ser2net process like below:
root@ELS61-E:~# ps | grep ser
980 root 988 S /usr/sbin/ser2net -n -c /tmp/ser2net.conf
1194 root 988 S ser2net -c /etc/s2n.conf
1536 root 1200 S grep ser
root@ELS61-E:~#
I have ELS61-E terminal, so if you can't find it, maybe it is named slightly differently, but there should be a process that is responsible for mapping one of the USBs to telnet. Please also see the configuration files. You can configure the ports there.
You may try to reset this process for test or configure some other USB interface.
Best regards,
Bartłomiej
Hello,
Sorry for late reply. I was off.
I think the problem was Power Supply. I changed the Power Supply and since 2 weeks didn't' have "Failed to set dtr/rts" error anymore.
But now I have 2 new issues :
1) Following error on all Modems:
Mon Jul 4 08:23:36 2022 ******.err ser2net[1009]: read error for port 1234: Connection timed out
Sat Jul 9 05:09:13 2022 ******.err ser2net[1009]: read error for port 1234: Connection reset by peer
Errors occurs on Modems after 1 day of work and USSD commands doesn't succeed anymore.
2) Modems Hangs after few days of work and I'm unable to access OpenWrt nor run USSD commands.
When trying to access Web Consol I have this Message:
"Bad Gateway
The process did not produce any response"
Please, I need help to stabilize modems because I should run them in Production from next Week.
Regards
Hello,
That looks like communication problems on Telnet port 1234. It might also be related to the host that you use for remote AT commands sending. What happens if you close and reopen this connection on the remote host side?
I suppose that SSH connection works as you pasted the log from OpenWrt. So the strange thing is that web GUI does not.
Have you done any changes in OpenWrt? Do you experience the same issues on many devices?
BR,
Bartłomiej
Hello,
Thanks for your reply.
Here are responses to your inquiries :
1) Even I close and reopen connection from remote Host, I have the same Error response 'None' to all USSD commands
2) I disabled SSH on modems for troubleshooting so cannot SSH
3) There are 2 type of erros :
- "Bad gateway Error" ===> No OpenWrt GUI Connexion ... hard reboot required
- "read error for port 1234: Connection reset by peer" ===> it's possible to access GUI but USSD commands failed.
4) I didn't make any change on OpenWrt, I even reset OpenWrt to Fatory...
5) I have 3 same Model of Modem and I have these errors on all of them.
Please, is there a new Firmware version for Upgrade? may be that could fix these errors...
Regards.
Hello,
It would be good to be able to debug OpenWrt as it looks like the problem might be there. You could also try to communicate with the module directly over RS232 port to check if EHS6 module is working fine or not.
How did you perform the factory reset? Did you reinstall the OpenWrt system image? Please write what image you have used. I'll check if it's the correct one.
Regards,
Bartłomiej
Hello,
The reset is done through the OpenWrt GUI interface only and didn't reinstalled any new Firmware.
Also, I only one Terminal has been reset and I have the issue on all Terminals (I have 3 units).
Thanks.
The reset is done through the OpenWrt GUI interface only and didn't reinstalled any new Firmware.
Also, I only one Terminal has been reset and I have the issue on all Terminals (I have 3 units).
Attached is the Firmware Version on Modems. Please, Advise if I should upgrade / downgrade..
Thanks.
Hello,
If you did not install any new firmware image, the one that you use is correct. However there is a newer one that is also appropriate. So you could try it.
To debug the problem I think that you need ssh to capture system logs with 'logread' and 'dmesg'. Maybe there is some answer there. And it would be good to check the module over RS232 port. Maybe you could also check the free memory with 'free'. And look at the running processes. Of course you can also report the problem to your distributor or Thales support system if you have access.
Regards,
Bartłomiej
Hello,
Thanks for your help. I will enable SSH on all others and then get Logs while the errors occurs and share with you.
But I have new error today :
On this one I enabled SSH so I got Logs that I will share in new post.
The only thing I noticed Lan goes UP and Down sometimes...
Thanks.
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