My previous PC was connected to my wifi router by a lead. My new one receives the connection without a lead (as the old one, I assume, could have done). Is there any advantage in connecting by a lead (the PC is right next to the router in my room), rather than wirelessly?
I always prefer my main computer to be wired for 2 reasons.
1. It makes for a faster connection and, more importantly, if the wireless connection fails for whatever reason, and there could be a lot of them, you still retain control of your router
There's no real reason to go wireless unless a) running a cable is impractical, or b) you're trying to eliminate at least some of the cable clutter that bedevils every PC installation, or c) some sort of portability is necessary. If neither a) nor b) nor c), then wired every time.