Hi! It's down the ddns cloud of mikrotik

Not unusual, I recommend to use other ddns service instead one provided by ROS with script on ROS which updates public IP on such service (examples can be found on this forum).

Thank you very much, yes but it almost never goes down, in fact it went down once about six months ago and before that I have no trace of it in years. Anyway, I have OVPN and I can also connect to the public network but I am interested in knowing how long it can stay down and what is the reason. Is there a place where I can see this report?

Seen some reports on this forum regarding MT Cloud availability... Maybe not lately, still I'm not using it to be sure, free service which I'm using never had a problem or I didn't noticed it.
MT have service desk support (not same account as for this forum), you can try there...

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Yes, I know, I have an account and some certifications, but I wanted to know if there was some kind of downdetector where I could see the status of the service, maybe someone knew. I follow it through official support. If there is any news, I will let you know here if you are interested.