[atlas] atlas probe down

Dear All, Our Atlas probe with ID 35603 is down since Wednesday exactly 12:00 LT. I unplugged power and powered on, but no success. After power on some LED's are blinking. Finally the power LED stays on and the LED next to it is blinking. But I can't ping this probe. Either on IPv4 nor on IPv6. We got this probe in summer 2018. So I can't believe it's EOL. Any ideas what I can do ? Kind regards Hans --