Walter

Sorry for waisting your time. I found the answer in https://github.com/greiman/SdFat/issues/181#issuecomment-1025065192 Thank you.

Same problem with me :-(

```text PS C:\Program Files\Arduino IDE> & ".\Arduino IDE" PS C:\Program Files\Arduino IDE> Failed to start the electron application. Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: C:\Program Files\Arduino IDE\resources\app\node_modules\p-filter\node_modules\p-map\index.js...

@per1234 I found the solution: the files in: ```text C:\Program Files\Arduino IDE\resources\app\node_modules\p-filter\node_modules\p-map\ ``` were outdated, obviously from the old 2.1.0 installation or the last nightly build, and the installer of...

Now, i found the solution for myself: for Windows in: C:\Users\xxxx\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.2\libraries\ESP8266WiFi\src\WiFiClient.cpp line 80 and 87 _timeout = 1000; (original 5000) `WiFiClient::WiFiClient() : _client(0), _owned(0) { _timeout = 1000; // was...