Hardware watchdog triggered >60times in 6h

[fmegen]

Hi,

I am using the latest version of the gateway image on a OpenTherm Gateway Wifi board I bought from nodo.
OTGW (192.168.aaa.bbb)0.10.3+e334c42

Today I was seeing reboot loop
2025-05-01 07:34:23 - reboot cause: Software/System restart (4)
2025-05-01 06:12:28 - reboot cause: Hardware Watchdog (1)
ESP register contents: epc1=0x401008a6, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
2025-04-17 12:13:07 - reboot cause: Hardware Watchdog (1)
ESP register contents: epc1=0x401008e6, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
2025-04-17 12:12:52 - reboot cause: Hardware Watchdog (1)
ESP register contents: epc1=0x401008ff, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
2025-04-17 12:12:16 - reboot cause: Hardware Watchdog (1)
ESP register contents: epc1=0x4010097f, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
2025-04-17 12:11:33 - reboot cause: Hardware Watchdog (1)
ESP register contents: epc1=0x401008c5, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
2025-04-17 12:10:11 - reboot cause: Hardware Watchdog (1)

The strange thing is that this never happened before (on the other hand, I own the board only for 2 months now)

Is there a way to debug the reason for the errors?

kind regards,
friedel