Why my iMac link is doubled in Finder in LAN?

Hello, fellows! Can someone please clarify why my iMac LAN link is doubled in Finder on my MacBook? The links lead both to my iMac - i just can't figure out why they are TWO there?

I ahve just replaced my Retina 2014 with a 2017 one an I have never seen this occurence om my previous Mac. And anticipating you next question I would tell that no, I didnt recover my data from previous one. I set one anew - freshmac OS install. Thrice.