That’s a short one , I was banging my head for the last few months with a problem @ my home network.

I have a few computers all of which are connected via a router  and all see each other perfectly and can be accessed via IP or computer name.

All except one PC and Mac  which refused to see each other by computer name but could be accessed by IP.  But today I finally managed, after comparing the installed software on two PC’s I decided to try and uninstall Bonjour services from my PC to see if it impairs the connection , and luckily it did.

So if it happens to you  remove Bonjour services from PC