There have been connectivity problems after installing a new computer.
There have been connectivity problems after installing a new computer.
My network performed well initially, but after installing a new PC this week, things became unstable. The setup included a D-Link Powerline adapter from a Telus router, which replaced an old Netgear Nighthawk. I purchased the router today to address problems, and some issues were resolved. From the adapter, I connected my custom-built PC, MacBook Pro via a Dell dock, and Apple TV 4. After the PC was added, speeds exceeded expectations—though the connection is limited to around 50 Mbps on Dell Powerline, not the full 75 Mbps. Once the Nighthawk was replaced, PC speeds improved to 50 Mbps, while WiFi remained normal. However, certain websites failed to load, even though SpeedTest.net worked. The issue persisted with DNS settings; removing 1.1.1.1 caused the same problem. Google DNS also didn’t help. Other devices functioned after the router upgrade, but my MacBook remained unresponsive. I’ve tried resetting all DNS settings, rebooting the router and PC, even disabling the firewall, but nothing resolved the issue. I’m frustrated because I rely heavily on macOS for work and can’t switch back to Windows.
I just came to the office to retrieve the files I was trying to download, but they weren’t accessible. The MacBook works normally, so the problem must be with my network connection.
Powerline adapters tend to cause problems. First check for data issues there, as they’re likely the source. Then consider the WiFi side—new equipment often struggles with older setups. One of the more bothersome aspects is how legacy hardware interacts poorly with modern devices.
You're having issues with your MacBook both on Wi-Fi and Ethernet connections, while other devices like your iPhone, iPad, and PC are working normally. It might be worth checking the power adapter setup or the cable connections for the MacBook.
I mentioned earlier that I visited my office today and everything is functioning smoothly. The MacBook connected quickly to all sites and managed to reach services that weren’t working from home.
I’m not claiming it doesn’t function, but it might not suit your current setup since it’s outdated and stubborn. People who are a bit old‑school often work well together. The younger crowd, with their quirky language and odd styles, tends to be the source of frustration.