HI, you MUST update your CODE, because the API change-

See the LINK:
https://docs.espressif.com/projects/ard ... o_3.0.html

Hi, my name is Adrian and I do not understood the changes in the migration from 2.0.17 to 3.0.1 BOARDS
In the example "Repeat timer example", in the setup() -> Configure a timer interrupt EVERY 1 [sec] ->
void setup() {
Serial.begin(115200);

// Set BTN_STOP_ALARM to input mode
pinMode(BTN_STOP ...

Good afternoon,
I'll send your doubts in order ->

1) Are you using an example program to connect?
Yes all the examples in Folder WiFi, and in my proper development that WORKS OK, for a few days and then COLLAPSE.
WifiClientEvents, WifiAccessPoint, WifiClient, WifiClientBasic, WifiClientStaticIP ...

Hi, my name is Adrian
I'm spanish spoken, and new with programs ESP32 from ARDUINO IDE 2.0.3
I have bought FOUR ESP32 module >> One of them has ->
* Chip is ESP32-D0WD-V3 (revision 3)
* Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
* Crystal is 40MHz
* MAC: 40 ...