I've found some info here : Raspberry Pi 3 built-in WiFi SSH NTP Problem · Issue #1519 · raspberrypi/linux · GitHub that seems to hit the spot.
After switching to LAN everything seems to work perfectly
I've found some info here : Raspberry Pi 3 built-in WiFi SSH NTP Problem · Issue #1519 · raspberrypi/linux · GitHub that seems to hit the spot.
After switching to LAN everything seems to work perfectly