Mikrotik switch CRS317 latest OS, is contacting Mikrotik for unkown reason!

[Louis2]

I noticed in my firewall logs that the switch is contacting Mikrotik via an UDP message all the time. I do not like that. Especially not since I do not understand the reason behind it!

Frequent messages I see is

SIA Latnet/LV	159.148.172.251 port 15252

Mikrotikls SIA/LV	159.148.147.201 port 15252

I block these messages, since I do not like switch outgoing messages for unkown reasons.

[jaclaz]

@Louis2

port 15252

Check:

outgoing request to 81.198.87.240:15252 udp

Hello, my RB tries to establish a connection to 81.198.87.240:15252 UDP. IP/Cloud DDNS and NTP are disabled. I also disabled the SNTP client (System/SNTP Client) Where does this come from? I can remember that I had the same problem on other device but I can not remember which settings caused this problem.