How do I remove an old player?

So I share a network with someone, and I've bought a node 2i from the same person.

I've connected my Node to my system but he has another node on his system.

His Node shows up on my "My Players" list in the node home menu.  Sometimes when there is an internet issue (wifi gets dropped, internet goes down, or my controler loses battery power and dies) the blue-os app defaults to the node in his apartment and I have to switch back. He said he was having the same problem but figured out how to remove the player from the list and now cannot remember how.  I've been digging through the forums but I can't seem to find it,  can anyone help ?