Connection issue between ESP32 C3 and Domoticz

[kenmercer]

I have an ESP32 C3 to monitor a 12V powered, remote, battery based system. I’m powering the ESP from the battery via a linear regulator (5V) and measuring the battery voltage divided by 10 using A0. GPIO10 is switching a reed relay which will go across the reset button of the remote system. Using SetOption146 I’m also getting the internal ESP temperature. Using the web interface all the above are working correctly.
I’m also running Domoticz with a range of sonoff devices and it is able to switch the relay just fine but not read the voltage or temperature.

Configuration (where not default)
Program Version 14.6.0 (release-tasmota32)
Build Date & Time 2025-04-16T11:21:09
Core/SDK Version 3_1_3/5.3.2.250403

Configure Module Page:
Module Type ESP32C3(1)
AO GPIO0: ADC Voltage
...
GPIO10 Relay_i

Configure Domoticz Page
Idx1 36
Sensor idx 1 Temp 38
Sensor idx 7 Voltage/PM2.5 37

**Domoticz Setup **
The relay is Idx 36 (Switch), the voltage is Idx 37 (Voltage) and the temperature idx 38 (LaCrosse TX3).

I’m logging to syslog on my desktop where the voltage and temperature are appearing:
Apr 22 22:39:05 tasmota-ACF5A4-4878 ESP-MQT: tele/tasmota_ACF5A4/SENSOR = {"Time":"1970-01-01T00:18:42","ANALOG":{"Voltage1":1.192},"ESP32":{"Temperature":42.100},"TempUnit":"C"}

Is the incorrect time related to my problem? In the log I’m also getting “DNS failed for 2.nl.pool.ntp.org after 0 ms” so
consequently changed some of the ntpservers but all three are getting tried. I’m not behind a firewall so cannot see how ntp could be blocked.
I don't know if I've made an obvious mistake but any pointers will be much appreciated.