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Recurrent "failed to set dtr/rts" issue on EHS6T | Thales IoT Developer Community

August 23, 2022 - 8:24am, 2312 views


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.