Troubleshooting My Philips Air Purifier App doesn’t connect away from home If your Philips Air Purifier App doesn’t work out of your home, find out here what you can do to solve the issue. The App is not up to date If your App is not up to date, this could cause it not to work properly. Please, make sure the app is updated. The Internet connection is not working properly Please, make sure your phone is connected to Internet. Network problems on 3G/4G network smartphone If your smartphone is on a 3G/4G network, try at a different location. Signal strength and data transmission speed provided by network service provider can vary with time and with location.