Ethernet Working but no Wifi

After a power outage a week ago, my wifi is no longer working. My ethernet is working fine, so I have internet service, but my iphone and a few other devices cannot get service. My iphone can log into my wifi network, but no pages will load. Strangely enough, my smart tvs have service and are not hardwired in. The problem seems to be isolated to my iphone, ting senser, nest camera and nest thermostat.  They all used to work fine on the same network, before the power outage. I have tried: 

- restarting the modem/resetting it through online customer service

- restarting devices

- logging into my modem and checking wifi is enabled

any ideas?