Login failure from dude server every day

Hi guys, I got a strange problem every day about 15:20:00 (± 10seconds ) I got the same error in my main router.

192.168.50.1 - main router

  • sep/20/2018 15:22:54 system,error,critical login failure for user admin from 192.168.150.250 via dude
  • sep/21/2018 15:22:58 system,error,critical login failure for user admin from 192.168.150.250 via dude
  • sep/22/2018 15:23:02 system,error,critical login failure for user admin from 192.168.150.250 via dude
  • sep/23/2018 15:23:06 system,error,critical login failure for user admin from 192.168.150.250 via dude
  • sep/24/2018 15:23:10 system,error,critical login failure for user admin from 192.168.150.250 via dude

192.168.150.250 - is my virtualized CHR with dude server, no scripts, no scheduler, no port forward on them so it should not be hacked or anything like that.
Dude server works great, no problem with reading data from 192.168.50.1 router os so there are right credentials set.
Any suggestions?

I’m having the same issues, its happen everyday at 3:28 UTC+7. Anyone know how to fix it?

I have the same story: failed login everyday at 15:23