Initially, I thought the unit was disconnecting from the Wi-Fi like in this thread.
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.
Any idea’s please @TrystanLea or @glyn.hudson? How can I gather logs for you?
Hi Max,
Sorry to hear you’re having issues.
Can you ping the unit?
Can you access the status page e.g http:///status
What WiFi FW version are you running?
The WiFi module dropping off the network should not stop the unit from charging,
Hi Glyn,
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.
Are there any logs I can capture?
Max
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:
You could also try updating to V4.1.2 which is the latest version:
I will try the update and let you know.
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.
The update made no difference. It is disconnecting from WiFi multiple times a day and refusing to connect without entering the password again.
If I connect to the EVSE when in AP mode, after it’s disconnected from the house WiFi, then look at the Debug, it is not saying anything about WiFi.
Any ideas?
Hi maximundo.
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.
Hi, pls forgive me resurrecting this old post which i stumbled on after experiencing v. similar behaviour.
How did you configure the GW and DNS as I see no option in the interface below. The unit gets a very strong signal from a Unifi Access point nearby so this dropout was mystifying until i read about your experiences.
Many thanks
Hi Ben.
The problem happened when a different GW and DNS was set for this host on the DHCP server.
Just removing this “special” setting on the router and leaving the DHCP settings without any extra parameters for the OpenEVSE host solved the problem.
Regards.
Thank you 
