Bogus NTP time from API, fallback to UDP method

Hi,

My MKR wifi 1010 can not connect to Arduino iot cloud :

[ 1863 ] ***** Arduino IoT Cloud - configuration info *****
[ 1863 ] Device ID: b8fdedba-7935-407f-b521-27ff1f6ad9d5
[ 1863 ] Thing ID: 73b5b3e3-f5bc-4396-b8e0-43c7e9526d85
[ 1863 ] MQTT Broker: mqtts-sa.iot.arduino.cc:8883
[ 2624 ] WiFi.status(): 0
[ 2624 ] Current WiFi Firmware: 1.2.1
[ 2625 ] Connecting to "xxx-yyy"
[ 9217 ] Connected to "xxx-yyy"
[ 9217 ] Connecting to Arduino IoT Cloud...
[ 9507 ] Bogus NTP time from API, fallback to UDP method
[ 11658 ] Bogus NTP time from API, fallback to UDP method
[ 14116 ] Bogus NTP time from API, fallback to UDP method
[ 16270 ] Bogus NTP time from API, fallback to UDP method

it worked some time ago... Any suggestions would be appreciated.