No connection possible to HomeAssistant using HTTPS with certificate for external domain

[hstein2m]

What's the issue?

I want to use b2500-meter to read energy data from my Home Assistant instance. My HA is configured to use https with a certificate assigned for an external (DynDNS) domain name.

When b2500-meter tries to connect to HA using its internal IP address, this fails due to the certificate not belonging to this internal IP but to the external domain.

Is there a way to either:

• configure b2500-meter to ignore the certificate mismatch, or
• use the external domain name instead of an IP address as target?

Your setup

• Installation method:
  Docker
• Storage system:
  Jupiter C+
• Power meter source:
  Home Assistant

Configuration

# Share relevant parts of your config.ini (remove passwords/tokens)

[HOMEASSISTANT]
IP = 192.168.1.11
PORT = 8123
# Use HTTPS - if empty False is Fallback
HTTPS = True
ACCESSTOKEN = xxx
# The entity or entities (comma-separated for 3-phase) that provide current power
CURRENT_POWER_ENTITY = sensor.current_power

## Error messages or logs

Paste any error messages here (if applicable)

Invalid certificate (will provide more details later, if required)

Additional info

None