I have HA server on a Raspberry Pi, hosted on my local WLAN network (not reachable from the internet). Today my HA Android app stopped connecting (“Unable to connect to Home Assistant… Error Code: -8”)
However I have no problems connecting using a different android mobile phone with the same HA app and also no problems connecting using a windows browser, both hosted on my home WLAN.
So it’s clearly something to do with the HA server refusing one specific device attempting to connect. Any thoughts what it might be, some certificate or something similar??
Cheers in advance for any help.