That’s strange, it usually does keep that, because the values are coming from the devices themselves. Like a switch is either on or off as soon as HA reconnects, it requests the state of the switch. Same for thermostats, at least in my case, because mine are connected via the router via DECT. It may helps to provide some more details on your installation (Docker, HASS OS, …) and devices
A quick and dirty solution would be using a date input helper, that get’s updated with every run and is used in a condition. But there is probably a smarter way
Networking stuff was my first thought, too, when starting to read your log. Unfortunately i can’t help you with that (my HA is in host mode as are all the IoT-devices), but I think I can explain why it was able to get the IP: It received it via the API from Xiaomi. Good luck figuring out the networking :/
Seems about right. I honestly don’t remember how I did it and now I switched to Valetudo… I found this link in my notes, may it helps https://community.home-assistant.io/t/missing-robot-model-dreame-z10-pro-laser-vacuum-cleaner-in-xiaomi-integration/423558
Iirc Xiaomi has different data centers, like eu, cn, us. You have to pick the correct one when setting up the HA integration of your choice. Hope that helps
If the course of study isn’t fixed, yet, you could look for a “Duales Studium” and ask the company to start earlier/asap - most likely they’ll accept. But Werkstudent is probably better
During restart all entities are in state unavailable. When the integrations are loaded all the entities with their current states become available again, but that’s something of seconds. The internal entities, like Helpers, are immediately available - that’s the closest to “value from HA itself” I have in my setup