Any further problems with your WiFi? Some users were reporting issues with the phone's connection to WiFi earlier, but it seems different from your issue of affecting other devices too.
Ironically, I've been having an issue where the 5ghz band on my router shuts down/drops and doesn't come back until a reboot. 2.4ghz still seems to work when 5ghz drops though. And it happens across 3 different routers. Logs show nothing either, it's driving me nuts.