Many thanks Jim for the feedback,
I couldn't check MC's reporter at the time, as the program froze.
As i wasn't importing anything today, cover art or analysis wasn't the case anyway.
Did checked the logs of the NAS aswell, nothing inside.
Same as the Meraki Dashboard, both the switch as the client didn't suffered of any bandwith loss or longer pings in the timeframe.
What's bugging me is the extreme high usage of resources, 98% of this CPU would be a rather massive process. As using 12MB of RAM aswell.
Anyway I'll keep an eye onto this and next time something shows up I'll make sure to post or add a new log.
Thanks.