You sure you've got your iMac set up to get a dynamic IP address from the router's DHCP server? Sounds like you might be getting a clash of IPs on your network? Difficult to tell without seeing the iMac and PC. Maybe when I'm down in April I'll have a look if it's still a problem?
itchypaws
⬅️ Terry Nation :: Cheers, yes ➡️
Paulʼs blog - I live near Folkestone in the deep South. Wed + father to two, I'm a full-stack web engineer, + I do js / node, some ruby, other languages etc. My hobbies are pubbing, running, restaurants, home-automation 🤖 and other diy stuff, history, family tree stuff, television, squirrels, pirates, lego, and TIME TRAVEL.