Multitech - TTN connection lost after some days

(Trmax) #1


My configuration is:

Multitech Conduit (MTCDT-LEU1-247A) with loracard (MTAC-LORA-H-868) and GSM Cellular for WAN Transport.

After a few days of trouble-free operation, the gateway no longer sends data. after a restart, everyone is back.
I looked at the log files and found the following:

14:43:08 INFO: Watchdog is disabled
14:43:08 INFO: Contact email configured to ""
14:43:08 INFO: Description configured to "Gateway from IBBD.AT"
14:43:08 INFO: [Transports] Initializing protocol for 1 servers
14:43:09 INFO: [TTN] server “” connected
14:43:09 INFO: [main] Starting the concentrator
INFO: FPGA supported features: [TX filter] [Spectral Scan]
14:43:09 ERROR: [main] failed to start the concentrator
14:43:13 *** Multi Protocol Packet Forwarder for Lora Gateway ***
Version: 3.0.10
14:43:13 *** Lora concentrator HAL library version info ***
Version: 5.0.1; Options: native;

devicehq is not interrupted. Only the last seen status on is interrupted and and packages are not received.


(Jreiss) #2

The log has this message but the unit is working after reboot?

Take note of the IP address on PPP
$ ifconfig

When the device fails check again if the IP address has changed on the cellular interface.

Try to add “autoquit_threshold” to the gateway config to restart if the IP changes.

Check that there is only one packet forwarder process running
$ ps -A

Try to stop the packet forwarder, reset the lora card, then start the packet forwarder. This should occur on reboot
$ mts-io-sysfs store lora/reset 0
$ mts-io-sysfs store lora/reset 1

Check that the card hardware is functioning, cdone should go low when creset is low.
$ mts-io-sysfs show lora/cdone
$ mts-io-sysfs store lora/creset 0
$ mts-io-sysfs show lora/cdone
$ mts-io-sysfs store lora/creset 1
$ mts-io-sysfs show lora/cdone

(Jac Kersing) #3

Please update to the newest version of the packet forwarder. To do so, get the newest installer from Easiest way is log on to the conduit and run:

wget -O

then re-run the installer with


(Satellite Applications Catapult) #4

Report. Same had happened to me; what I did (checking after every step if it works):

  • reboot
  • checked hw reset lines using commands mentioned above
  • updated installer using commands mentioned above
  • reflash FPGA hex with mts-fpga-loader to version v31 - success
  • reflash FPGA hex with mts-fpga-loader to version v33 - fail
  • reflash FPGA hex with mts-fpga-loader to version v31 - success
  • reboot
    Works. So it might be updating installer, but with restart being required… which doesn’t make sense, or does it…?