But according to UniFi the unit is staying connected. It becomes unresponsive and also stops charging. A power cycle fixes it but this happens in the depths of the night when I am asleep and my car hasn’t charged.
Thanks. The unit become completely unresponsive. I cannot ping or anything. It is running V4.1.
I completely reset the unit and this seems to have helped a little but now WiFi won’t stay connected. I have to keep connecting to the built-in AP and entering the password again. Even this doesn’t work sometimes, and I have to power cycle it numerous times before it will connect.
It sounds like the WiFi module is struggling to maintain a connection, what’s the RSSI (signal strength) of the WiFi module? The a more negative value means a weaker connection. My home openevse has -56 RSSI, and I’ve not had any issues. This is visible on the System tab:
There is an AP in the garage and the unit get’s -50 dbm.
When it disconnected yesterday I connected to the EVSE’s wi-fi and it said the Wi-Fi password was wrong. No amount of reconnecting or restarting would work. I created a new Wi-FI SSID and it connected straight away. But it randomly disconnected this morning at 7.28am, restarting the EVSE did connect it back though.
I guess you have already solved your problem. But just want to leave a comment in case you it is useful.
I started to suffer the same problem you describe yesterday. I recently updated evse and wifi to the latest firmware. And it was running properly after the update.
Yesterday, I was working on a few things and after a while it stopped responding. Screen was showing sleeping and the web wasn’t accessible from anywhere. After trying to connect from several devices on the local network I found out that only the ping from the router was responding.
Doing a factory reset, made the stand alone AP available and accessible again. But as soon as it was changed to the local wifi, it started to behave the same. I though it could be related to MQTT or some other service, but it wasn’t.
In the end, it was a DHCP server option to use a different GW and DNS that caused the problem. It is correctly set up, as it is working for other devices in the network. But on the OpenEVSE it causes a very weird problem that is only solved by disabling the DHCP option and reseting to factory default OpenEVSE.