[werk_ag]

Hi jarekh3,

In first place, try to enable the NTP debug options by uncommented the line as show below:

Code:

// --------------------------------------------------------------------------------------
//   Debug helper
// --------------------------------------------------------------------------------------
//#define PRINT_DEBUG_WIFI
#define PRINT_DEBUG_NTP_UPDATE      // Prints to serial monitor messages related to sync time with NTP server

What you get on the serial monitor?
You can also enable the PRINT_DEBUG_WIFI options to check if you are getting WiFi connection, otherwise the NTP will not work.


Next check your auto summer time settings, here:

Code:

// --------------------------------------------------------------------------------------
//   Define rules for Auto Summer Time Display, and clock adjustment
// --------------------------------------------------------------------------------------
// Example for Australia Eastern Time Zone (Sydney, Melbourne)
// TimeChangeRule aEDT = {"AEDT", First, Sun, Oct, 2, 660};    //UTC + 11 hours
// TimeChangeRule aEST = {"AEST", First, Sun, Apr, 3, 600};    //UTC + 10 hours
// Timezone myTZ(aEDT, aEST);

TimeChangeRule PST = {"PST", Last, Sun, Mar, 1, 60};   //Portuguese Summer Time -  "UTC + 1" or GMT + 1
TimeChangeRule GMT = {"GMT", Last, Sun, Oct, 2, 0};    //Portuguese Winter Time -  "UTC + 0" or GMT
Timezone myTZ(PST, GMT);

There is also another way you could try to force the clock to sync:
On the examples folder of the RTClib library, there is a sketch called ds3231.ino, compile it and upload to your Meduino. Your clock should be working correctly now.