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Randomly goes offline and charges against schedule

The issue: sometimes my OpenEVSE goes offline. Plugging in my EV starts charging at ~8A, even when the programmed schedule says it shouldn't charge at all, and I have never set it to 8A. The screen also says "ready, 40A" when its charging. Over the last year this has happened about a half dozen times. A few times I thought it might be related to temperature as it occurred multiple times on a hot week (but not when it reported the hottest temperature), now it's occured multiple times on a cold week (but not at the closest time of day). Power cycling it brings it back right away. It doesn't seem like it's just losing wifi based on the off schedule charging and the weird screen display. Has anyone seen this? Any insight into the cause? Anything I can do to debug? Is there any logging i can turn on or view? I normally leave it to a set schedule and override it every night via an mqtt command (and log everything I get from mqtt)
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