Thanks! Yes, it seems the routere was hacket. Strange, that I never share the password with anyone.
Just did hard reset and start settings from the beginning.

It seems I found something strange: there is another user with name System. I have never add this user. I as Admin user now have less rights and I cannot add telnet connection to unlock terminal. Any suggestions?

Hi, I'm quite newby user with Mikrotik hAP ^2. Today my internet speed has been reduced and ISP complains that DDOS traffic is going out from the router. I disconntect all devices, but outbound traffic is still there. Is there any way to help me? It seems I opened too many ports (but it is just gut ...