This is a weird one. My MacBook will just stop communicating on my network. It shows that it is connected to WiFi, and if I reboot it it will load a webpage for the first few seconds after I login, but then it just stops all network communication - even though it still shows connected to WiFi. Nothing else on my network is impacted. I can’t ping in or out. I reinstalled macOS and it worked, for about 4 days, then stopped working again.
Anyone seen this before?
Sounds like it might be a hardware problem. Is it still under warranty by chance?