I picked up a Wiz Smart Plug and for the life of me I couldn’t get it to connect to the WiFi using the Wiz Connected app. I’d already connected the plug to the Portable Button, so Smart Pairing was out, I had to pair manually. No problem, I thinks. Yet the app would get stuck on the step Sending credentials… under the Connecting to the Cloud header. None of my Google-fu (Duck-Duck-Go-fu?) surfaced any working solutions, which I eventually realised was to turn off the Tailscale VPN I had active on my phone. D’oh!