Ubiquity DDoS-it mikrotik?

Question

Mikrotik

1. There is an incoming Internet, which further distributes Mikrotik
   
2. There are two buildings where the Internet goes, in the first building there is a network of routers from ubiquity, about 15-20 pieces
   
3. Ubiquity is served by their own server, which is up and running in the first building
   
4. The OS of the machine running the ubiquity server process is windows 7
   

The situation is as follows:
Once windows 7 decided to install updates and reboot, but later for some reason it was not included. After that, the Internet in the second building, as in the first, began to work from time to time: once out of 10-20 attempts, sites open, in other cases it gives an error (I don’t remember now, like about the inaccessibility of the DNS)
At this moment I pull out lan, which goes into the building with ubiquity, and the Internet in the second building starts working.
As soon as I turn it back on, the network starts to disappear again.
I thought it was DoS, but I wanted to ask people who know network technologies.
Do you think it could be DoS?

Answer 1

or maybe a stupid loop or a reboot was at the time of the firmware update for unibuks?

Answer 2

This is not DDoS

Answer 3

I don’t remember now, like about the unavailability of DNS

Mikrotiki "out of the box" suffer from the fact that they are DNS relays for the outside. Perhaps the problem is this. Read the logs on the 53rd, if I suddenly guessed it, add a firewall rule and everything will be OK. Just in case - forum.nag.ru/forum/index.php?showtopic=91006

Answer 4

it's not about mikrotik, most likely you have point monitoring mode enabled in the Ubiquity server settings
p / s if we are talking about wifi points ... if not, then litter explain ...