@dave-eiriksson Those are the same settings I have in my XBee S6B. I attached screen shots below of my settings from XCTU (I deleted my personal network information). I have found by watching the diagnostics in the serial monitor that the S6B doesn’t connect very reliably to wifi to POST after making changes and uploading. Sometimes it requires a power cycle to reset it after uploading. Are you verifying using XCTU that the correct parameters are stored in the XBee and that the sketch isn’t overwriting them with something different? What kind of feedback are you seeing in the serial monitor?