HELT plötsligt sämre WIFI?

trådlöst är alltid utsatt för störningar, kan räcka att grannen köpt en ny bluetooth-högtalare för din wifi ska bli sämre speciellt om du ligger på 2.4ghz bandet som är fullknökat med alla möjliga trådlösa prylar

@swenorth1: it's possible that your neighbor just purchased a new router and is using exactly the same channel as you are, so you are getting interference. Try installing "WiFi analyzer" on your phone to see which WiFi channels are congested and which are open. Once you know it, you can reconfigure your router.

It's also possible that your access point is dying... but that's probably less likely.