Restart after print start

[Simon 0]

Hi guys,
my printer always restarts after starting the G-Code. Duet is responding "Connection interrupted http request time out" (probably because of the restart and the failed connection). I restarted my router and used the wifi reset macro, but nothing worked. The same result by printing from SD-Card or PC. Do you guys have any ideas?
Simon

[dc42]

@simon-0 if you ever get an unexpected reset of the Duet, run M122 as soon as it reconnects and post the result here.

[Simon 0]

@dc42 the result is in the text data, because of the spam filter
M122.txt

[dc42]

Last reset 00:00:37 ago, cause: power up

The reset was caused by the PSU cutting out.

[Simon 0]

@dc42 how can i fix it?

[Simon 0]

Problem solved. The heater was broken. Thanks for helping!