I’ve been working on the ESP32 device for over a year now. And I have also experienced intermittent connectivity and slow bandwidth issues. The RSSI strength is decent (around -40 to -50). But even with that, connectivity and or performance is sometime very poor. I switched to using Post antennas from Seeed and thought it helped. But a couple of days later, things just fell apart. But I did discover (quite by accident) that I get instant router connectivity and 3-4X increases in throughput with one simple move … holding the antenna. Works like a champ. That said, I really think the ESP32-S3 or the XIAO board needs some analysis. I will be trying other boards as well. But I don’t recall seeing this issue with the ESP32C3. Hmmmm. Sorry, I have no real solution. But I do see problems as well.
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