Just to share a recent experience: my Homey Pro had been running just fine for years, but earlier this week it lost connectivity to the Ziggo router. Tried several reboots - no improvement.
Took a while, but then I found some threads on this forum regarding wifi-channel selection on the Ziggo router.
By default, channel selection on Ziggo routers is automatic (called “Smart Wifi”, see picture).
As soon as I disabled this, Homey was once again able to connect to Wifi.
