Hi matty_t The adjustment of the load capacitance solved the problem for the time being in our case (Prototype HW, just some FW Devs who need this thing to work somewhat reliably). We are currently in a tight spot in terms of timeline, and are not directly responsible for the HW. In our case, with n...

Hi @matty_t We recently ran in the exact same issue with a custom PCB with an ESP32 and custom Antenna. long story short: With our design it was the crystal Oscillator, more precisely the matching of the Load Capacitance. In a Hw revision the used crystal got changed from 26MHz to 40MHz. At the same...