A couple of days ago I noticed that PVOutput was no longer getting the extended data from my Powerwalls. I went back through the PVOutput logs and discovered that data collection stopped around 7:30 PM on 5/17. Last night I went into the Wizard and discovered that the whole interface had changed. When I got to the screen to select a connection type there was verbiage to the effect that it would use the "most reliable" connection type. Sure enough, it was no longer using my WiFi connection but had reverted to the cellular connection, which is how my installer had initially set it up. My WiFi signal is excellent in the garage where the Powerwalls are located because I have an access point plugged into the outlet that is literally in between the two Powerwalls. In the Wizard, that WiFi network shows the highest signal available. I tried several times to change the connection to WiFi but ultimately gave up because if would revert back to the cellular connection. I called Tesla support and explained my situation. The support person told that there was an update about a week ago to force a "reliable" connection and this is what may have affected me. I told him that this was not my preference, and that I would a prefer a WiFi connection. I explained that I was logging the data on PVOutput and that a WiFi connection was required. They are going to open a support ticket and the support person said that they may be able to change this new requirement on my installation. Because of the holiday weekend, he said it most likely wouldn't happen until Tuesday and that someone would contact me. Edited to add: My Powerwalls are on Version 3.3.6 (aa790933e) Anyone else experienced this?